"Preview in Tableau Desktop" Shows Fewer Rows of Data Than Expected

Published: 08 Apr 2021
Last Modified Date: 08 Apr 2021


When using the "Preview in Tableau Desktop" option, the number of rows of data and the values obtained in Tableau Desktop may be less than what is expected.


  • Tableau Prep Builder


To troubleshoot this issue, try the following options:

Option 1
In the Input step, on the Data Sample tab, select 'Use all data'. For more information about the different data sample settings, see Set your data sample size.

Option 2
Create an output step in your flow, and save the output to a file. Then connect to the file in Tableau Desktop.


The "Preview in Tableau Desktop" option only shows the data sample you are working with in your flow (with the operations applied to it, up to the step that you selected). For more information about this feature, see View flow output in Tableau Desktop.

Additional Information

In Tableau Prep Builder, data sampling is indicated by the 'Sampled' User-added image badge.
Did this article resolve the issue?