How To Fix /SAPAPO/MAT754 - Screen &2 (report &1) already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MAT -

• Message number: 754

• Message text: Screen &2 (report &1) already exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MAT754 - Screen &2 (report &1) already exists ?

  The SAP error message /SAPAPO/MAT754 indicates that a specific report (identified by &1) is already being processed for a material (identified by &2). This error typically occurs in the context of SAP Advanced Planning and Optimization (APO) when multiple processes are trying to access or modify the same data simultaneously.
  Cause:
  
  
  Concurrent Processing: The most common cause of this error is that a report is already running for the specified material. This can happen if:
  
  A user has initiated the report and it is still in progress.
  Another user or background job is executing the same report for the same material.
  
  
  
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. When a report is running, it locks the relevant data, and any subsequent attempts to run the same report will trigger this error.
  
  
  Solution:
  
  
  Check Running Jobs: 
  
  Use transaction SM37 to check for any running jobs related to the report. Look for jobs that are currently processing the same material.
  If you find a job that is stuck or taking too long, you may need to investigate further or terminate it if appropriate.
  
  
  
  Wait and Retry: If the report is running as expected, you may need to wait until it completes before attempting to run it again.
  
  
  User Coordination: If multiple users are trying to run the same report, coordinate with your team to avoid concurrent executions for the same material.
  
  
  Review Background Jobs: If the report is scheduled as a background job, ensure that it is not scheduled to run too frequently for the same material.
  
  
  Check for Locks: You can use transaction SM12 to check for locks on the material. If you find any unnecessary locks, you can release them if you have the necessary authorizations.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM37: Monitor job status.
  SM12: Display and manage locks.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on the specific report and its expected behavior.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific report or error message.
  
  
  Performance Considerations: If this error occurs frequently, consider reviewing the performance of the report and optimizing it to reduce execution time.
  
  
  By following these steps, you should be able to resolve the error and understand the underlying issues causing it.