3121541 - Posting failed. Tax required for G/L account &1 in company code &2.

After upgrade to S/4HANA Cloud 2111, some expense reports from Concur started failing with the following error:

• Posting failed. Tax required for G/L account &1 in company code &2.
  Message no. CTE_FIN_POSTING145
  Diagnosis
  Based on your system's configurations, the G/L account &1 in company code &2 requires a tax for posting.

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental. 

• SAP S/4HANA Cloud 2111

For the given expense report the tax block in JSON file is empty.

In the transaction CTE_SETUP navigate and choose More -> Setup -> G/L Accounts, here investigate if the GL account which is failing to post have the flag "Posting without tax allowed marked as 'No'.

With release 2111 we enhanced the coding to be in line with FI posting. This error message is coming from a check that is just checking the configuration of the GL account. In your current configuration, you can’t make a posting to this GL account without a tax code.

Therefore to correct this situation and be able to post the documents, change the configuration of the GL account and allow posting without the tax, or change the GL account to the one where it is allowed.

Find useful information in our Customer Information Work Zone. 

To access the Customer Information Work Zone page with its additional information, send a mail with the subject “Work Zone Access” to sapconcurintegration@sap.com. Note that this channel is not intended for error handling or to address requirements!

Check our FAQ notes:

• 2922806 FAQ: General Information about the Concur Integration
• 2914977 FAQ: Concur Certificates, Authentication, and Connectivity
• 2923196 FAQ: Financial Posting in the Concur Integration

CTE_FIN_POSTING145, CTE_FIN_POSTING 145, Concur, tax required, Concur Integration. , KBA , BNS-CON-SE-S4-FIN , Concur S/4HANA Financial Integration , How To