How To Fix /SAPAPO/RET_MESSAGES549 - Databse changes during a MERGE not possible

/SAPAPO/RET_MESSAGES549 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 549

• Message text: Databse changes during a MERGE not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RET_MESSAGES549 - Databse changes during a MERGE not possible ?

  The SAP error message /SAPAPO/RET_MESSAGES549 indicates that there are database changes occurring during a MERGE operation that are not allowed. This typically happens in the context of SAP Advanced Planning and Optimization (APO) when there are attempts to modify data while a MERGE operation is in progress.
  
  Cause:
  
  Concurrent Modifications: The error often arises when there are concurrent transactions trying to modify the same data that is being merged. This can happen if multiple users or processes are trying to update the same planning object or data set simultaneously.
  Database Locking: The database may have locks in place that prevent changes while a MERGE operation is being executed. This is a common scenario in transactional systems where data integrity is crucial.
  Long-running Transactions: If a transaction takes too long to complete, it may overlap with another transaction that is trying to perform a MERGE, leading to this error.
  
  
  Solution:
  
  Check for Concurrent Processes: Identify if there