Last Modified Date: 25 Nov 2019
Option 1Replace the dimension from one secondary data source with the same dimension from the primary data source on the Marks Card. This will prevent two different dimensions (level of detail) from two different secondary data sources from being present on the Marks Card.
Option 2In the case where there is not a matching dimension in the primary data source or other secondary data source, joining the data using table joins or cross database joins will be necessary. Additional information about cross database joins can be found in the following Tableau Online Help article: Combine Tables Using Cross-Database Joins
CauseIf two different dimensions from two different secondary data sources are placed on the Marks Card or on the Rows/Columns shelf, they will prevent the 'View Data' option from appearing when selecting data points in the view.
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