How To Fix CCMM246 - Changing the original material &1 of the reservation is not allowed

CCMM246 - Overview

• Message type: E = Error

• Message class: CCMM - Message Class for A&D CCM

• Message number: 246

• Message text: Changing the original material &1 of the reservation is not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CCMM246 - Changing the original material &1 of the reservation is not allowed ?

  The SAP error message CCMM246 indicates that there is an attempt to change the original material of a reservation, which is not permitted. This error typically arises in the context of materials management and inventory management processes within SAP.
  
  Cause:
  
  Material Reservation: The error occurs when a user tries to change the material associated with a reservation that has already been created. In SAP, once a reservation is created for a specific material, it is locked to that material to maintain data integrity and traceability.
  System Configuration: The system may be configured to prevent changes to certain fields in a reservation after it has been created, especially if the reservation is already being processed or has been referenced in other transactions.
  Status of the Reservation: If the reservation is in a status that does not allow changes (e.g., it has been partially or fully issued), the system will prevent any modifications to the original