How To Fix CPMASS020 - Enter the new reference operation set

SAP Error Message - Details

• Message type: E = Error

• Message class: CPMASS - Messages: Mass Change

• Message number: 020

• Message text: Enter the new reference operation set

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 CPMASS020 - Enter the new reference operation set ?

  The SAP error message CPMASS020, which states "Enter the new reference operation set," typically occurs in the context of project management or production planning within the SAP system. This error is often encountered when users are trying to copy or modify operation sets in the context of project structures or production orders.
  
  Cause:
  The error is triggered when the system expects a new reference operation set to be specified, but it is either missing or not correctly defined. This can happen in scenarios such as:
  
  Missing Input: The user did not provide a new reference operation set when prompted.
  Incorrect Configuration: The system configuration may not be set up correctly to allow for the operation set to be copied or modified.
  Authorization Issues: The user may not have the necessary permissions to access or modify the operation sets.
  
  
  Solution:
  To resolve the CPMASS020 error, you can follow these steps:
  
  
  Enter a New Reference Operation Set:
  
  When prompted by the