How To Fix /SAPAPO/RET_MESSAGES571 - All processed restrictions are locked for other users

/SAPAPO/RET_MESSAGES571 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 571

• Message text: All processed restrictions are locked for other users

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_MESSAGES571 - All processed restrictions are locked for other users ?

  The SAP error message /SAPAPO/RET_MESSAGES571 indicates that all processed restrictions are locked for other users. This typically occurs in the context of SAP Advanced Planning and Optimization (APO) when multiple users are trying to access or modify the same planning object or data simultaneously.
  
  Cause:
  
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies when multiple users attempt to access or modify the same data. If a user has locked a particular restriction or planning object, other users will be unable to access it until the lock is released.
  Long-Running Transactions: If a user is engaged in a long-running transaction or process, it may hold locks on certain data, preventing others from accessing it.
  User Sessions: Sometimes, user sessions may not be properly terminated, leading to lingering locks on data.
  
  
  Solution:
  
  
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can identify which user or session is holding the lock