How To Fix /SAPAPO/RET_MESSAGES604 - Changes during a MERGE not possible &1 &2 &3 &4

/SAPAPO/RET_MESSAGES604 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 604

• Message text: Changes during a MERGE not possible &1 &2 &3 &4

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RET_MESSAGES604 - Changes during a MERGE not possible &1 &2 &3 &4 ?

  The SAP error message /SAPAPO/RET_MESSAGES604 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there are issues related to merging data during planning processes. This error indicates that changes cannot be made during a merge operation, which can happen for various reasons.
  
  Cause:
  
  Data Locking: The data you are trying to modify may be locked by another process or user. This can happen if another transaction is currently using the same data.
  Inconsistent Data: The data being merged may not be consistent or may violate certain constraints, leading to the inability to perform the merge.
  Incorrect Configuration: There may be configuration issues in the APO system that prevent the merge from being executed properly.
  Version Conflicts: If multiple versions of data are being processed, conflicts can arise that prevent changes during the merge.
  
  
  Solution:
  
  Check Locks: Use transaction codes like SM12 to check for any locks on the data. If you find locks,