How To Fix PE691 - Error occurred when deleting the requirements assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: PE - Shift Planning: Messages

• Message number: 691

• Message text: Error occurred when deleting the requirements assignment

What causes this issue?

You are trying to delete a requirements assignment.

System Response

An error occurred when deleting the assignment. The assignment could
not be deleted from the database buffer.

How to fix this error?

Store the changes and exit shift planning. Start the process again to
determine which entries were not deleted.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PE691 - Error occurred when deleting the requirements assignment ?

  The SAP error message PE691, which states "Error occurred when deleting the requirements assignment," typically occurs in the context of managing requirements in SAP, particularly when dealing with the assignment of requirements to various objects like production orders, purchase requisitions, or other planning elements.
  Causes of PE691
  
  
  Data Integrity Issues: There may be inconsistencies in the data that prevent the system from deleting the requirements assignment. This could be due to missing or incorrect entries in related tables.
  
  
  Locked Objects: The object you are trying to delete may be locked by another user or process, preventing the deletion.
  
  
  Dependencies: There may be dependencies or relationships with other objects that need to be resolved before the deletion can occur.
  
  
  Authorization Issues: The user may not have the necessary authorizations to perform the deletion.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might interfere with the standard deletion process.
  
  
  Solutions to PE691
  
  
  Check Data Integrity: Review the data related to the requirements assignment. Ensure that all necessary entries are correct and complete. You may need to run consistency checks or reports to identify issues.
  
  
  Unlock Objects: If the object is locked, check for any active sessions or transactions that may be holding the lock. You can use transaction code SM12 to view and manage locks.
  
  
  Review Dependencies: Investigate any dependencies that may exist. Ensure that all related objects are in a state that allows for deletion.
  
  
  Authorization Check: Verify that the user has the necessary authorizations to delete the requirements assignment. You can check this using transaction SU53 or by consulting with your security team.
  
  
  Debugging: If the issue persists, consider debugging the process to identify where the error is occurring. This may require the assistance of a developer or SAP Basis team.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error. There may be known issues or fixes available.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including transaction codes, steps taken, and any relevant logs.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (for lock management), SE80 (for object navigation), and SE37 (for function module debugging).
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Documentation: Review SAP documentation related to the specific module you are working with, as it may provide additional context or troubleshooting steps.
  
  By following these steps, you should be able to diagnose and resolve the PE691 error in SAP.