Error: "An unrecoverable error occurred. Contact Tableau Support (500)" When Connecting to a Web Data Connector and Converting and String Field

Published: 30 May 2017
Last Modified Date: 17 Nov 2017


When connecting to a web data connector based data source, if you convert a string field to a whole number and then extracted the data, the number values is incorrect and the following error might occur: 

"An unrecoverable error occurred. Contact Tableau Support (500)" 


  • Tableau Desktop 10.2
  • Windows 7
  • Web Data Connector (such as Anaplan)


Option 1 

Upgrade to Tableau Desktop 10.3.4 or 10.2.6. For more information, see Upgrading Tableau Desktop in Tableau Help.

Option 2

When working converting the string field, do not use special characters in line item Titles.


This behavior is related to a known issue (ID: 688953) which has been fixed in a recent release of Tableau Desktop. 
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