How To Fix CNV_PE255 - Change of a transfer list storage is not allowed

CNV_PE255 - Overview

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 255

• Message text: Change of a transfer list storage is not allowed

What causes this issue?

Changing a database storage for a transfer list (Cluster Technique <->
Transparent Tables) is <ZH>not </>possible because the transfer list
already contains data.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_PE255 - Details

• The SAP error message CNV_PE255: Change of a transfer list storage is not allowed typically occurs in the context of data migration or data transfer processes, particularly when using the SAP S/4HANA Migration Cockpit or other data transfer tools. This error indicates that there is an attempt to modify a transfer list storage that is not permitted.
  
  Cause:
  
  Locked Transfer List: The transfer list may be locked because it is currently being used or has been finalized.
  Incorrect Status: The transfer list might be in a status that does not allow changes (e.g., completed or archived).
  Data Integrity Constraints: There may be constraints in place that prevent changes to the transfer list to maintain data integrity.
  
  Configuration Issues: There could be configuration settings in the migration cockpit or data transfer tool that restrict changes to the transfer list.
  
  
  Solution:
  
  Check Transfer List Status: Verify the status of the transfer list. If it is locked or in a