How To Fix SHDB_PFW402 - Another application &1 is already active

SAP Error Message - Details

• Message type: E = Error

• Message class: SHDB_PFW -

• Message number: 402

• Message text: Another application &1 is already active

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SHDB_PFW402 - Another application &1 is already active ?

  The SAP error message SHDB_PFW402, which states "Another application &1 is already active," typically occurs when you are trying to run a transaction or application that is already open in another session. This can happen in various scenarios, such as when using SAP GUI or when executing batch input sessions.
  Cause:
  
  Multiple Sessions: The error usually arises when you attempt to start a transaction that is already running in another session. SAP restricts multiple instances of the same transaction to prevent data inconsistencies.
  Batch Input Sessions: If you are trying to run a batch input session that is already being processed or is still open, you may encounter this error.
  Locking Mechanism: SAP uses a locking mechanism to ensure data integrity, and this error is a result of that mechanism preventing the same transaction from being executed multiple times simultaneously.
  
  Solution:
  
  Check Open Sessions: Look for any open sessions in your SAP GUI. You can do this by checking the session overview or using the transaction code /nSM04 to see all active user sessions. If you find the transaction running, you can either close it or wait for it to finish.
  End Active Sessions: If you find that the transaction is stuck or you need to terminate it, you can log off from that session or use the transaction code /nSM04 to end the session.
  Batch Input Sessions: If the error occurs during batch input processing, ensure that no other batch input session is currently running. You can check this in transaction SM35 and ensure that the session is not in a "Processing" state.
  Restart the Transaction: After ensuring that no other instances of the transaction are active, you can try to restart the transaction.
  
  Related Information:
  
  Transaction Codes: 
  
  /nSM04: To view and manage user sessions.
  SM35: To manage batch input sessions.
  
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as there may be known issues or fixes provided by SAP.
  User Permissions: Ensure that you have the necessary permissions to execute the transaction or batch input session.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or refer to SAP support for further assistance.