How To Fix CR121 - Available capacity is referenced and cannot be changed

CR121 - Overview

• Message type: E = Error

• Message class: CR - (1,099) Work Center; (100,200) Capacity

• Message number: 121

• Message text: Available capacity is referenced and cannot be changed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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 CR121 - Available capacity is referenced and cannot be changed ?

  The SAP error message CR121, which states "Available capacity is referenced and cannot be changed," typically occurs in the context of capacity planning and production planning within SAP. This error indicates that there is an attempt to change the available capacity of a resource (like a work center) that is currently being referenced in a production order, planning scenario, or other related processes.
  
  Cause:
  
  Referenced Capacity: The available capacity of a work center is being referenced in a production order or planning scenario, which means it is locked for changes to maintain data integrity.
  Active Orders: There may be active production orders or planned orders that are utilizing the capacity of the work center.
  Capacity Planning: The system may be configured to prevent changes to capacity when it is actively being used in planning or scheduling.
  
  
  Solution:
  
  Check Active Orders: Review any active production or planned orders that are using the work center. If there are