How To Fix 56109 - Change in posting past

56109 - Overview

• Message type: E = Error

• Message class: 56 - HR TRAVEL: Messages for Trip Costs Dialog

• Message number: 109

• Message text: Change in posting past

What causes this issue?

You want to change a trip which has already been posted.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

If you carry out the change, the transfer program will start
adjustment posting.

System Response

Error message extract from SAP system. Copyright SAP SE.

56109 - Details

• The SAP error message 56109, "Change in posting past," typically occurs when there is an attempt to change a document or posting that has already been finalized or posted in the past. This error is common in financial transactions, where the system restricts changes to ensure data integrity and compliance with accounting principles.
  
  Cause:
  
  Posting Date: The posting date of the document is in a closed period. SAP restricts changes to documents that belong to periods that have already been closed.
  Document Status: The document may have already been cleared or settled, making it immutable.
  Configuration Settings: The system may have been configured to prevent changes to historical data to maintain audit trails.
  
  
  Solution:
  
  Check Posting Period: Verify the posting date of the document. If it falls within a closed period, you may need to open the period temporarily (if allowed) or create a new document to correct the error.
  Use a New Document: Instead of changing