KNOWLEDGE BASE

Refreshing a Web Data Connector (WDC) with Strings Converted to Numeric Type Causes NULL Values


Published: 31 Mar 2017
Last Modified Date: 18 Jul 2017

Issue

If a Web Data Connector (WDC) returns string values that are then converted to numeric data types in Tableau Desktop, future refreshes can cause any value with a non-numeric character (such as commas) to return as NULL.

Environment

  • Tableau Desktop 10.1.7 and earlier

Resolution

Upgrade to Tableau Desktop 10.1.8 or a newer version. For more information, see Upgrade Tableau Desktop

Cause

This behavior is related to a known issue with ID 635404 which has been corrected in more recent versions.
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