How To Fix /SAPAPO/RET_MESSAGES031 - & is version for Reservation Planning. Changes are not allowed

/SAPAPO/RET_MESSAGES031 - Overview

• Message type: E = Error

• Message class: /SAPAPO/RET_MESSAGES -

• Message number: 031

• Message text: & is version for Reservation Planning. Changes are not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RET_MESSAGES031 - & is version for Reservation Planning. Changes are not allowed ?

  The SAP error message /SAPAPO/RET_MESSAGES031 typically indicates that changes are not allowed in the context of Reservation Planning in SAP Advanced Planning and Optimization (APO). This error can occur for various reasons, and understanding the cause is essential for finding a solution.
  
  Cause:
  
  Locked Objects: The object you are trying to change may be locked by another user or process.
  Status of the Reservation: The reservation may be in a status that does not allow changes (e.g., it may be confirmed or completed).
  Authorization Issues: The user may not have the necessary authorizations to make changes to the reservation.
  Configuration Settings: Certain configuration settings in the system may restrict changes to reservations after a certain point in the planning process.
  Time Period Restrictions: Changes may not be allowed for reservations that fall within a specific time frame or planning horizon.
  
  
  Solution:
  
  Check Locks: Use transaction code SM12 to check for any locks on the object you are trying