How To Fix /PLMI/RTG_RCA_SCO018 - Internal error; planning scope &1 not locked

/PLMI/RTG_RCA_SCO018 - Overview

• Message type: E = Error

• Message class: /PLMI/RTG_RCA_SCO -

• Message number: 018

• Message text: Internal error; planning scope &1 not locked

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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/PLMI/RTG_RCA_SCO018 - Details

• The SAP error message /PLMI/RTG_RCA_SCO018 Internal error; planning scope &1 not locked typically indicates that there is an issue with the locking mechanism for a planning scope in the SAP system. This error can occur in the context of SAP Integrated Business Planning (IBP) or SAP S/4HANA when trying to access or modify a planning scope that is not currently locked for the user or process attempting to perform the action.
  
  Cause:
  
  Concurrent Access: Another user or process may have locked the planning scope, preventing your action from proceeding.
  System Configuration: There may be configuration issues related to the planning scope or the locking mechanism.
  Technical Issues: Internal errors or bugs in the SAP system can also lead to this error message.
  Session Issues: If a previous session did not close properly, it might still hold a lock on the planning scope.
  
  
  Solution:
  
  Check Locks: Use transaction code SM12 to check for existing locks on the planning