Last Modified Date: 22 May 2020
Option 1:Upgrade to Tableau Prep 2018.3.3 or a newer version. Click here for downloads of Tableau Prep: Tableau Prep Downloads and Release Notes. For more information on current releases, see Install Tableau Prep and Prep Upgrade. This will add the new files in Union upon reopening the flow file
Option 2:Right-click the input node and select Refresh.
CauseThe ability to automatically recognize a new file added to a wildcard union was added in Tableau Prep 2018.3.3.
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