A datetime field in the primary data source, for example, will not blend with a date field in the secondary data source. Any existing, automatic blend kontakte is visible (and pot be deleted by suspend over the row and clicking the x). THEN add this total to the SUM of the projected_users from today's date through month X. Thanks. It would be nice if when you blend two data sources, you could have the option to show "Only Relevant Values" on filters used from the secondary data source. Set up the primary and. If we are working with one data source that is not relatable or joinable (such as Google Analytics) you are not able to blend a secondary data source with logical tables to it. AUMTable (Secondary) 3. Call it [Start KM]: IF ATTR ( [KM Date])=ATTR ( [OIL]. They must be in the same format. This can restrict many values from the secondary data source. Secondary data is one of the two main types of data, where the second type is the. So you need to create a Date field in your Master Data Source, which is why I usedAlternative to CountD function in Blending. Using existing secondary data sources can save researchers time and resources by providing access to pre-existing data that has already been collected and organized. 2. The relationship is on the facility ID. During Data Blending in Tableau, if the secondary data source has any LOD (Level of Detail) Expressions, they are taken down after the data blending process is finished. Please refer the below link and let me know if this helps to you. Instead of using relationships, double-click into your table to get to the. You are trying to bring fields from a second data source into a calculation that is being created in the primary (first) data source and aggregations are not consistent - data from the second source comes over as an aggregate - look into what the aggregation is on and how does that relate to what you have in the primary data baseI'm trying to blend two data sources on a single field, say 'Program Description'. One small workaround which you can do is: 1) Create a calculation as {Max([Date])} 2) Create a parameter as follows: 3) Create a calculation as . The version I am working with 10. "Cannot blend aggregated data from the secondary data source with the data on this sheet because there are no linking fields use din the view" I'm using 2 separate data sources connected to Oracle and published to the Tableau server. The default view that you first see in the Data Source page canvas is the logical layer of the data source. Aside from consulting the primary origin or source, data can also be collected through a third party, a process common with secondary data. if that is the case I could get same results by joining 2 data sources just by linking Area and Qtr not all 4 and without using LOD for secondary data source i. When I make the data source as Primary, I am able to see the respective values, Kindly see the below screenshot:- But, when I consider this data source as secondary and then try to use it in primary data source sheet, I get this error:- Cannot blend the secondary data source because one or more fields use an unsupported aggregation. ×Sorry to interrupt. Input cannot become used from the [name are secondary data source] data source, because there is no blend relationship to the primary data source. 4, I tried to blend products (secondary) to storefront (primary) based on Sku. This type of bases does not allow for blend relationship, therefore, you cannot use a filter like this. Option 2: Create a calculation for a more dynamic sort. See the attached updated workbook. Please find the complete blog here ----> COUNTD with secondary DS Tableau(Blending) Workbook is attached. Summary:. Data sources can contain logical tables not be used as secondary data sources for data blending. Here is situation I am facing, I have blended two data sources and created a worksheet. I have two data sets that are linked across Date and Product Category fields. Consider joining the two data sources together using Tableau Prep, and then you can use that data as a. But the source calc is a countD. Fee". For more information, see Troubleshoot Data Blending; Blended data sources cannot be published as a unit. Filtering data across a worksheet's secondary data source is not currently supported in Tableau Desktop. Data blending brings in additional information from a secondary data source and displays it with data from the primary data source directly in the view. I am blending dates in the secondary data source to dates from the primary source and looking to get a distinct count of the customer code from the secondary data source. Left. If you are blending a cube data source, it must be the primary data source. Common Issue #1: Cannot blend the secondary data source because one or more fields use an unsupported aggregation The aggregation methods of COUNTD,. Dominic Laird(Member) 5 years ago. From Primary Data Source drag the measure names and measure values . Please post you twbx workbook so we can see if there a way . Now the nightmare starts: when I try to add the data source B and make all the relationships, it gives me the lovely error: "Cannot blend the secondary data source because one or more fields use the ZN function, which cannot be computed locally. Option 2: Join tables that are in the same data source, instead of blending them. Open. First data source looks like below. This didn't work alas, "cannot blend secondary data source because one or more fields use an unsupported aggregation" I am using a filter from a different datasource to filter by region . Beyond that personally I tend to do the work necessary to avoid using data blending in production data sources & views. Does anyone have any Ideas how I can apply a universal filter to 5 different unrelated data sources? Applies to: Tableau Cloud, Tableau Desktop, Tableau Server. Try one of the following options, as appropriate for your workbook: It may be possible to cross database join instead of blending. Currently, data sources that contain logical tables cannot be used as secondary data sources for data blending. Observations : 1. Status, Stage, etc). Change the default sort order of the field using the various options, and then click OK. IF ATTR([Offer Status]) = "Hired" Then AVG([Comp_File]. Data blend is like a Left outer join. I am trying to blend the same data against the other because I wanted to show Same Period last Year. You can create a federated database using linked tables/worksheets. I was now trying to use both calculations you did on a different sheet through data blending. Modify the calculation to not use table functions;. I noticed there was an issue using Data Blend from 3 different source. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. I. When you data changes, you need to redo the. As it is right now (version 8) if you add filters from a secondary data source, you can not cascade the filters based on what the user selects from one filter to the other - this is only. Assuming that's what's going on, there's the question of how to work around this. 2) Use data source filters instead of the Filters Shelf. My problem happens when I go to the dashboard, I want to filter on FW (fiscal week) and have crosstab. "Filtering Across Multiple Data Sources Using a Parameter; Cause A sheet cannot be filtered by a field from a secondary data source. you get all data from main data source and ONLY matching data from secondary data source. “Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Even if I don't join the 2 data sources and just blend them by "Region" and "Store Name", I still get "Cannot blend the secondary data source because one or more fields use an unsupported aggregation" on dragging Total Utilized Money field into the view. This happens regardless if I drag it on the rows or on the Marks space as a 'text'. The secondary data source just pulls in some names to associate with ID numbers in the primary and some filters for the staff data. FIXED ID, WEEK: CountD (accounts)). Hi Justin, Thanks for your quick reply. This functionality was available in versions 8. newBranchProjection (Secondary) When I try to add COUNTD([DistrictId]) from my primary to text table. Data blending; Table Calculations; Resolution Use one of the following workarounds: If possible, join instead of blend your data. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Secondary Data Source: Contains data relating to the usage of a website (hits). We don't get row-level data from secondary sources on a. Thanks for your help everyone! I've found what was happening: I had some filters on the secondary data source. According to Tableau, this error can also appear when using a LOD expression in a blended view. Then you can simply show one filter control on your dashboard and set it to apply to all related data sources. Non-additive engine are entirety functions that errichten outcomes that cannot be aggregated along a dimension. LOD will not work if it is from the secondary datasource. In this source create a calculated field to pull out the KMs on the date of oil change. Can anybody please help me with a solution. Nitish Pamarty (Member) 7 years ago. The solution. Upvote Upvoted Remove Upvote Reply. The data are sorted, but each row only shows one month of data with the other five columns blank. Click oLoading. Because there are no linking fields in this view. A Level of Detail (LOD) expression is being taken from the secondary data source. and tried to plot chart, the chart complains that "Data sources that contain logical tables cannot be used as secondary data sources for data binding". Someone in the Community told me the following:A common use case for my analysis is blend a secondary data source then do a table calculation with various independent measures (thus I cannot apply filters). But when I am trying to do that I am getting an errorThe issue comes when I try and add a metric that is an aggregate of the two different sources. Required cookies are necessary for basic website functionality. SandhyaData from the secondary data source (via a data blend) can never be a dimension. LOD expressions are used when running complex queries with multiple dimensions at the data source level. Community Manager update. xls files). I can add to filters from the data extracts. There is a possibility that the values can be restricted from the secondary data. I am working with two Data Bases that are essentially the same, but I use the second one to "fake" dates (basically the same date +1 year) in order to use it for the YoY comparison that aligns with the different filters I set. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. then i added a secondary data source from google sheet , which has the fuel amount. If I cant go the above way then is there a possibility to do the duration calculation using table calculations or some other way. In Tableau Desktop, navigate to Data > Edit Relationships. In the secondary (user rights sheet), create a "Verify Username" calculation that has the fmula:. then i added a secondary data source from google sheet , which has the fuel amount. My goal is to show CY Actuals as bars, with a line for PY Actuals and a line for Budget. You cannot filter data across secondary data sources. One on table it was all upper case on the other one it was a mix of upper and lower case. It takes advantage of the data collected from previous research and uses it to carry out new research. In a blend, the secondary data source can only contribute aggregated values using the level of detail defined by the linking fields that appear in the view, so when you remove them, the. I get a blank sheet on the dashboard using the secondary data source because it looks for CASE SENSITIVE ABC . The blend is not activated meaning a field from secondary DS is not used in the view. I get around it by adding "max" in front of the first one again, and it says calculation is valid, but once I try to add it to the view it gives the error "Cannot blend the secondary data. "cannot blend the secondary data source because one or more fields use an unsupported aggregation" Attached is the workbook that could provide more clarity on my question. So the only way, it was possible was to connect one of the data sources with a calendar table joined with previous year and then blend it against the same data to get the Current Year and Same Period Last Year values in a single view. Option 2: Join tables that are in the same data source, instead of blending them. I have my primary data source with dimensions customer and order no and a secondary data source with customer, postcode and an 'is vat exempt' boolean field. Each has a joining field with the same name. In short, Tableau connects to multiple data sources, sends independent queries to those data sources, and then combines (or “blends”) the aggregated results of the independent queries on a single worksheet. Relationships cannot be formed between tables from data sources published to Tableau Server or Tableau Online. In this source create a calculated field to pull out the KMs on the date of oil change. Limitations of Data Blending in Tableau. IF min([Current Period ]) = true then [Display Sum Media Cost] end / sum(IF [Current Period ] = true then. I've blended on user ID. Relationships: Join: Combines columns: Yes: Cross database joins will not work with all data sources: Joins: Blend: Combines columns: No: Fields from the secondary data source cannot be brought in to the view unless there is a match on. Tableau Community (Tableau)Data blending creates a link on common dimensions--where those commonalities do not exist in the two data sources, values will be excluded. The unsupported aggregation happens when your aggregate requires row-level visibility to the secondary data source. 1. Loading. 0 and 7. One of the Dimension which is part of the Relationship between Primary and Secondary Data Source is being used in Filter and the same field cannot be displayed in Report as it changes the Level of grain of the reportIm using two data source to develop the workbook. Cannot blend the secondary data source since one or more search use certain unsupported aggregation. Hello Tableau world!! Am running into the strangest problem when data blending with V8. It sounds like there might be some complications with a blend? Can’t speak to what’s happening there Are you blending on [Endtimestamp]? By using the formula DAY([Endtimestamp]), you're changing the dimensionality a little bit. (to which I am blending data from other sources Name and Spend) and it worked! Observe the ordering of numbers in the last column between the. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. order_date = B. I have 2 data sources, A and B, they are linked by data blending with A. Select Custom in the relationships list, and then get Attach. The version I am working with 10. This is interesting. Now when I drag and drop the transaction data, everything works just fine, but if I try to use the "Add all Subtotals" option to get the AVG Transactions value for each Market then I am getting the dreaded "Cannot blend the secondary data source because one or more fields use an unsupported aggregation" on my worksheet when I change the "Total. How to tackle “Cannot blend the secondary data source because one or more fields use an… How to tackle “Cannot blend the secondary data source because one or more fields use an unsupported aggregation” while blending Multiple data sources. 3. Does the. It sounds like there might be some complications with a blend? Can’t speak to what’s happening thereAre you blending on [Endtimestamp]? By using the formula DAY([Endtimestamp]), you're changing the dimensionality a little bit. In the Data pane, switch to the [name of secondary data source] data source, and click at least one link icon to blend these data. There's a set of views/calcs that show a metric, (metric C) counting distinct number of accounts contacted per person per week (e. The data is blended on customer. Filter each of the data sources independently on the more granular dimensions. CSS Errorthe message says that a Logical table can not be used as a secondary source - You are trying to blend data (or at least tableau thinks you are) try reverting the data connection to a Physical model to JOIN the files together on the company name - JimThe secondary data source hasn't been changed and the groups work as filters. Whichever data source you "use first" in a view (by dragging in a field) becomes Primary. I have just realised why the blending was not working. good morning you have blended your data sources - data from the secondary source always comes to the primary and an aggregate so Budg_date needs to be aggregate with min max or attr but that will probably not give you the result you expect the data from the secondary source will come over as an * if there is more than one date filtered from that. Output - End output which I need is a table with a single row data for each country with 3 columns Country name, Total Count of DD, Total Cost for DD. Blending from a polygon-based map to an existing data source which uses 1-to-many joins. Data blending is used when the linking fields need to vary on a sheet-by-sheet basis for different visualizations. Data. To reduce query times when working with a large data source like Store - South, you can use data blending to blend only on the summary data of the large secondary data source (Store - South) with the data in the smaller and presumably faster primary data source (Store - North). Verify if one of the measures coming from the cube data source has a default aggregation different than SUM, MIN, MAX, COUNT. The concept of data blending is, for every match in the primary table there should be exactly one row item in your secondary table, in the view of this concept any aggregation on the secondary table will always be distinct by default. "Cannot blend the secondary data source because one or more fields use the / function, which cannot be computed locally. Did some research on this and found plenty of "workarounds" with no success (like replacing COUNTD() with a LoD using AVG(# of Records))Workaround: Option 1: Instead of using Data Blend, please use Relationship to relate the data sources, and the "Only relevant values" option is available to show only existing values. Resolution. Loading. "Budget" is only contained in an Excel file data source. Chicken - VMBurger + Choice of DrinkBurger - VMSpaghetti + Choice of DrinkSpaghetti - VM Trying to do a COUNTD() from a secondary data source and got this dreaded error: > Cannot blend the secondary data source because one or more fields use an unsupported aggregation . Fields from the secondary data source used in the view have an orange tick. From my primary data source I have a dimension in columns say 'Customer Segment'. I need to get a count distinct of Patient ID from the Primary data source, as well as count distinct of Patient ID from the Secondary data source in one worksheet. So, basically, I am having issues with 2 calculations - the FIXED LOD and Remaining Value. I'm blending the 2 data sources by Service_Id. Filtering data across a worksheet's secondary data source is not currently supported in Tableau Desktop. And I can't explain why it does that. The success of BI projects depends on an organization's choice of BI solutions and the vendor’s ability to deliver relatively rapid and successful implementations, along with supportive. If you want to filter data across secondary data sources, consider the following alternatives: Join tables that are in the same data source, instead of blending them. Right-click in the Data window and then. I am already using a Custom SQL query as an additional data source and trying to do blending based on the relationship on BU code field from RPT and AD. The date values must be in the same format. Select Analysis > Create Calculated Field. FIXED requires that you have row-level access to the rows in the secondary source. 0, but I imagine someone has been able to identify what is causing the issue. Step 1: Create the Parameter. In the secondary data I have a LOD field called Total_Category_Response defined as { FIXED [Category]: SUM([Respose_ValI am working on a dashboard where I am using the data blending feature to visualize the data from different data sources in to a single view. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. In a blend, secondary data sources are aggregated and the StoreID dimension would be aggregated to "*". I have a Remaining Value calculation, but it is not correct. - Go to Data > Edit Relationships to create the define primary and secondary data sources and the links - Drag and drop the linked field from the primary data source to use this field on the visualisation. I am already using a Custom SQL query as an additional data source and trying to do blending based on the relationship on BU code field from RPT and AD. These latter two situations trigger a different style of data blending (DB2) inside Tableau to ensure an accurate blend and that makes computation of non-additive aggregates much more. Unknown file type Total from Secondary Data Source. Error: Cannot Blend the secondary data source because one or more fields use an unsupported aggregation. (I created calculated fields "Fiscal Year" and "Fiscal Month" on my secondary Superstore example to simulate this. I have the total number of headcounts on one data set, and the number of attritions on the other so I am trying to write number of records (datasource1)/total headcounts (datasource2) and i get the red pill telling me "cannot blend the secondary datasource because one or more fields use an unsupported aggregation". See Join your Data for instructions. Some of my table calculation are the follow: RED FIELD Tableau Name of First Math Course= IF [Tableau Period of First Math Course]== [Academic Period] AND ( [Subject Desc]=='Mathematics' OR [Subject. The aggregation is all on primary source data. . The Products set contain the individual products within an Opportunity whereas the Opportunities set contain Sales metrics (i. I want to do a basic data listing showing customer, order no, postcode & vat exempt. These latter two situations trigger a different style of data blending (DB2) inside Tableau to ensure an accurate blend and that makes computation of non-additive aggregates much more difficult. Does anyone have any Ideas how I can apply a universal filter. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Because the question is related to how the data sources are being related, it would help to see the real data structure. . Data blending is particularly useful when the blend relationship—the linking fields—need to vary on a sheet-by-sheet. Hi . In the Relationships dialog box, under Secondary data source select Custom, and then click Add. For example, COUNTD(). One approach that succeeds in adding another measure is to add the measure in question to your. If you want to filter data across secondary data sources, consider the following alternatives: Join tables that are in the same data source, instead of blending them. thanks. Use the geographic role in the primary data source on detail instead of the dimension from the secondary data source. Data blending have some limitations regarding non-additive total such like COUNTD, MEDIAN, and RAWSQLAGG. e. Go to Data menu on top and go to Edit Relationships (Data -> Edit Relationships) Create a custom relationship between the 2 new created in 2nd and 3rd source. 3 and I have created aggregates AGG for fields from data extract and excel file. So if you drag Category from the Orders data source, it will automatically mark Orders as the primary data source. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. I cannot able to use as one connection since am using the data source filter in my first connection have data source filter. See. Fee" I want to plot Gross Profit (i. 3 and I have created aggregates AGG for fields from data extract and excel file. I have two data sets: the first data set is a shp file from data. General Information. For more information, see Deciding Between Joining Tables and Blending Data. If if this is the case, you could try creating a calculation for DAY([Endtimestamp]) in both the primary and secondary data sources, and adding it to the blend. I am trying to create a waffle chart. The secondary data source consists of 1 Fact table (Agg_ActualVsExpected) and 4 Dim tables, one of the Dim tables is Dim_Service, whose primary key is Service_Id, which appears also in the Fact table. e. General Information. Also, data blending is useful for combining data from published. The attached workbook and the following steps illustrate the process. 1) Vizible Difference: Getting around Count Distinct in a secondary data source. This is a dynamic way to make data in sets stand out and gain greater real-world context for users. Primary and Secondary sources in data blending. In the Data pane, switch to the [name of secondary data source] data source, and click at least one link icon to blend these data sources. In the actual data I get the error: Cannot blend the secondary data source because one or more fields use an unsupported aggregation. Upvote. Data blending is a method for combining data from multiple sources. I receive this error: "Cannot blend the data source because one or more fields uses an unsupported aggregation". Hi, I'll expand a bit on what @Chris wrote: There are some fundamental limits to what can be done with data blending and while there are workarounds that can get us the desired results in some circumstances those workarounds will not work in all circumstances (because Tableau never built out data blending to handle every. ODBC is a pretty universal technology for doing this, you can find more by doing a web search on "linked tables" or "linked worksheets" for your specific data sources. I am creating a couple of formulas to display the total booking from the second data source to the first data source. So the only way, it was possible was to connect one of the data sources with a calendar table joined with previous year and then blend it against the same data to get the Current Year and Same Period Last Year. twbx. Therefore it cannot display null data. {FIXED [Machine Nr] : COUNT ( [Machine Nr] )} / {FIXED [Machine Nr] : COUNT ( [Machine Nr] )} This works fine when there is no secondary data source but when I blend with a secondary data source it grays. Blending runs a query on each data source and joins the aggregated results of those queries. Hi All, Is there a way to use a parameter to work for secondary data source in blending. The secondary data source is indicated with an orange tick on the data source and an orange bar down the side of the Data pane. Cannot Blend Secondary Data Source - Unsupported Aggregation. See Join Your Data for more information. " inner cross database join on BU Code with a data source filter set up on UPPER([ID])=UPPER(USERNAME()) on the DS2 source. A datetime field in the primary data source, for example, will not blend with a date field in the secondary data source. blending takes place in step 6 of the Order of Operation after all the context and dimension filters have been applied - you will not be able to filter across the data sets after that point - you would need to have joined data or use a relationship The issue comes when I try and add a metric that is an aggregate of the two different sources. Community Manager update. The concept of data blending is, for every match in the primary table there should be exactly one row item in your secondary table, in the view of this concept any aggregation on the secondary table will always be distinct by default. Cube data sources can be used only as a primary data source to blend data in Tableau, and cannot be used as secondary data sources. Upvote Upvoted Remove Upvote Reply. Hi All! I would like to ask for your help, I do have two data sources: BI Cube (primary source) & Excel file (secondary) BI Cube Data 1 pc. See Troubleshoot Data Blending - Tableau for more information on this and other errors that may occur while using data blending. The date values you want to blend on must exist in both data sources. It says, "fields cannot be used from [data name] data source, because there is no relationship to the primary. and tried to plot chart, the chart complains that "Data sources that contain logical tables cannot be used as secondary data sources for data binding". I've attached my workbook that contains 2 data sources that are blended by invoice number. [% age]>=SUM([Percentage]) . The data is tracked at the subsite level, so I've utilized LOD calculations to determine the min login time and the max logout time fixed on the site level. When I create an additional calculated field in the primary data source with: COUNTD(Person ID) + COUNTD(Person ID), I receive the cannot blend the secondary data source because. You can use data blending when you have data in separate data sources that you want to analyze together on a single sheet. I am confused, as I am not even trying to blend Data from both Data Sources. We don't get row-level data from secondary sources on a blend. From my primary data source I have a measure in rows, say 'Measure, which is 'distinct count of Pol Number' or 'sum of Premium' depending on a boolean parameter's values (TRUE or FALSE) The unsupported aggregation happens when your aggregate requires row-level visibility to the secondary data source. Data from secondary data sources must always be aggregated in calculations. In addition, you cannot blend Measure Values from a secondary data-source, so that rules out this approach as well. e. A data blend cannot filter on dimensions that do not exist in the Primary data source. All the data is in the secondary/blended data source. if you have blended data sources you can not use lods One of the drawbacks of blended sources . [Cash PTM]) Else [Null] ENDIn your example, this doesn't work, because your primary data source needs to be Master Store List, because you want to list all the store IDs. I am blending 2 data sets by employee id and when i am trying to group a field from the primary database, it is showing me below error: Cannot blend the secondary data source because one or more fields use an unsupported aggregation. This is the response I received from Tableau Support:Cause. But there are few workaround for it. Data blending brings in additional information from a secondary data source and displays it with data from the primary data source directly in the view. Hi Andy, Following up on this - Tableau has been promoting the jump to relationships, in place of joins. You cannot filter data across secondary data sources. when I use A as primary data source and drag A. You will need a common column between the two tables in order to blend. What does this mean? I want to create a city filter and apply it both to the SAS data source as well as the pivoted CSV file. Before I check Date filters, I got this results. If attempting to use COUNTD in a secondary data source when blending, see the following additional workarounds: If Tableau Prep cannot be used, see: Getting around Count Distinct in a secondary data source (third party website) Creating a primary group: Bring a Field into the Primary Data Source in Tableau HelpWhen I am using apply filter to related data sources, other data sources add this field as a secondary data source and the worksheets which uses that as a primary data source gives me errors. 2, Tableau introduces relationships and splits. Error: "data sources that contain logical tables cannot be used as secondary data sources for blending" I have two fact based data marts that I want to blend on a combination of dimensions (product, month, currency). Data blending is a method for combining data from multiple sources. Maxdate) There is one more way, make the datasource which is using the fixed calculation to. 5 3 . But I cant add filter Month from the Budget Excel file. Solution in the image 📌 Non-additive aggregates from the primary data source 📌 Non-additive aggregates from the secondary data source 📌 Non-additive aggregates from a multi-connection. For secondary data source you get same result by managing relationships in your case just Area and Qtr. I would like to ask for your help, I do have two data sources: BI Cube (primary source) & Excel file (secondary) BI Cube Data 1 pc. In the Add/Edit User Mapping dialog crate, do the following: Select a select by the primary your data. Another table is a a table that contains key fields such as date, region, location and hardware id (dimension). Chicken + Choice of DrinkBurger + Choice of DrinkSpaghetti + Choice of Drink . This link might help you: Cannot blend the secondary data source because one or more fields use an unsupported aggregation. LOD Expressions will not be shown in the Data Source; When referencing a dimensionality declaration parameter, always use the parameter name and not the parameter value; With data blending, the primary data source's linking field must be in the view before you can use a LOD expression from the secondary data source. Data blending tools can present their findings as visualizations, such as infographics and charts, after querying data sources and aggregating relevant information. Beginning with Tableau Desktop 2020. The chart should display: countd. I made a waffle chart grid using an excel data source that contains 3 fields: Rows, Columns and Percentage. I noticed that when the spatial file is the secondary data source, I cannot area plot it by double clicking the geometry variable. How to rewrite my calculation to fix the error: cannot blend the secondary data source because one or more fields are use and unsupported aggregation. I am just trying to filter every Data source, by choosing a field that every Data source has. 1, the ability to "Show Empty Rows" (or columns) was removed when you use a secondary data source. This can help researchers identify. Notice that Calc1 gives you an asterisk if there are multiple values returned from the secondary source. Good morning . I've tried using COUNTD() ID First Last 1 Jim Carrey 1 Jim Carrey 2 Liam Neeson 3 Wynona Ryder COUNT([ID]) = 4 COUNTD([ID]) results in error I can add to filters from the data extracts. But seems we cannot blend 2 secondary data source with same field. 3. 2. I've created the first chart with no problem, but I. From what I understand, it's because the link variable must be present in the view, or else it does not work. Russell Christopher (Member) 10 years ago. What I'm trying to do is, create a new column in the 'data to map to' table, saying I only want to see 'PY Sales' numbers where the 'Period' column is equal to the MAXIMUM of 'Sales Cycle' column from 'Data to Map from' table, which is from. Cannot blend the secondary data source because one or more fields use an unsupported aggregation. CSS ErrorIF user chooses month X and parameters/filters like gender/age/etc, THEN count all distinct users from data set #2 where the date of data set #2 is from 2017-08-01 through today's date. To blend on summary data, you can do the following: Create a. Reference line -----> in this approach able to show sub-category items measures like sales and quantity totals as reference lines shown in below figure . Blending Data Issue: "Data sources that contain logical tables cannot be used as secondary data sources for data blending" Hi All, new to Tableau (learning through Udemy) and have run into an issue trying to blend. Expand Post. ×Sorry to interrupt. I ended up purchasing an Alteryx license for our company (we now have a lot. I'm noticing you are using the Date field from the secondary data source you are working with. If there is another aggregation type such as AGG_AVG being used, change it to one of the supported aggregation listed above in the cube database itself before using in Tableau Desktop. COUNTD is tough to work on while you. So make sure you're not using such function while blending. BR, NBBlended data sources cannot be published as a unit. 1) Duplicate the field in primary datasource. 1. With the recent release of Tableau Desktop 2020. I like to have the ability to swap a primary data source with a secondary data source for data blending in a workbook. Also, after I get the total per PO Number, I want to get a remaining value that subtracts the Total Cost (from the secondary data source) from the Total per PO Number. Name: Distinct Count. In the data window, the blue tick indicates the Primary data source (Sales in the image below). To the Data pane, umschaltung in this [name of secondary data source] data source, real click at lowest one link icon to blend that data sources. Common field is the employee ID. Here is the sample. 1 Connected to Tableau Server as Main DS and Live Connection to an excel file as secundary DSStep 2: Bring summary data from the secondary data source into the primary data source. A COUNTD of Order ID should be all I need to show this data but it always results in a "Cannot blend the secondary data source because one or more of the fields use an unsupported aggregation". If you want to filter data across secondary data sources, consider the following alternatives: Join tables that are in the same data source, instead of blending them. You have a nice example to use for filing a support case, and I recommend that you do that. I get error: “Cannot blend the secondary data source because one or more fields use an unsupported aggregation. In this case the cross database join will effectively act like the. Blending takes place in the 6th step of the order of operation after the data table for the individual worksheet is set and the filters applied - data from the secondary source are aggregated at the level of the link and brought to the primary as. Effective visualization. I have 2 duplicate data sources that I am blending together (they are duplicate because I want to filter the same data source 2 different ways but show it in. ) If only one of the tables requires row level information, consider making that the primary data source in the blend (I. Both Primary and Secondary data sources have duplicate rows due to multiple joins in data prep. General Information. In data source A, I have COUNTD(Person ID) and in data source B, I have COUNTD(Person ID). While on a view, right click a data source, click replace data source. Expand Post. This means that it forces the view to display only relevant data in the secondary data source. 1. When trying to use COUNTD() it gives this error: cannot blend secondary data source because one or more fields use an unsupported aggregation when hovering over the Measures because it is now red. duplicate the date field. Hi . " Is there a way to circumvent this issue? Or perhaps a different method entirely. The reason of the errors being unsupported calculation in blend.