How To Fix BRAIN491 - The key date derivation type &1 is locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN -

• Message number: 491

• Message text: The key date derivation type &1 is locked by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BRAIN491 - The key date derivation type &1 is locked by user &2 ?

  The SAP error message BRAIN491 indicates that a specific key date derivation type is locked by a user, which prevents other users from making changes or accessing that particular derivation type. This can occur in various SAP modules, particularly in the context of planning and forecasting.
  
  Cause:
  The error occurs when:
  
  A user is currently editing or has locked a key date derivation type, preventing other users from accessing it.
  The lock may be due to an active session or transaction that has not been properly closed.
  The user may have left a session open, or there may be a system issue causing the lock to persist.
  
  
  Solution:
  To resolve the BRAIN491 error, you can take the following steps:
  
  
  Identify the Locking User: Check which user is locking the key date derivation type. The error message provides the user ID (&2).
  
  
  Contact the Locking User: If possible, reach out to the user who is locking the derivation type to