How To Fix AH790 - Update type &1 not permitted for period category &2

AH790 - Overview

• Message type: E = Error

• Message class: AH - IS-U billing (master data)

• Message number: 790

• Message text: Update type &1 not permitted for period category &2

What causes this issue?

During analysis of the schema, a step was found that contains the
internal period category &V2& and the output operand with update type
&V1&. This combination is not permitted.

System Response

How to fix this error?

An internal error has occurred; contact SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AH790 - Update type &1 not permitted for period category &2 ?

  The SAP error message AH790 indicates that there is an issue with the update type being used for a specific period category in the system. This error typically arises in the context of financial postings or updates in SAP, particularly when dealing with periods that have specific restrictions or settings.
  
  Cause:
  The error message "AH790 Update type &1 not permitted for period category &2" usually occurs due to one of the following reasons:
  
  
  Incorrect Update Type: The update type specified in the transaction is not allowed for the given period category. Each period category in SAP has specific rules regarding which update types can be used.
  
  
  Period Status: The period may be closed or locked for posting, which means that certain types of updates cannot be processed.
  
  
  
  Configuration Issues: There may be configuration settings in the controlling area or financial settings that restrict the use of certain update types for specific period categories.
  
  
  Posting Period: The