How To Fix PSSC_TOOLS152 - Enqueue/dequeue error; use either single or multiple enqueue/dequeue

SAP Error Message - Details

• Message type: E = Error

• Message class: PSSC_TOOLS - Message Class for Periods & Due Date Tools

• Message number: 152

• Message text: Enqueue/dequeue error; use either single or multiple enqueue/dequeue

What causes this issue?

Both parameters IV_OBJECT and IT_OBJECTS are filled. Only one of them
should be filled.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Fill either IV_OBJECT or IT_OBJECTS, but not both.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PSSC_TOOLS152 - Enqueue/dequeue error; use either single or multiple enqueue/dequeue ?

  The SAP error message PSSC_TOOLS152 indicates an issue related to enqueue and dequeue operations in the SAP system. This error typically arises when there is a conflict or a problem with the locking mechanism that SAP uses to manage data consistency during transactions.
  Cause:
  
  Concurrency Issues: The error may occur when multiple processes are trying to access the same resource simultaneously, leading to a conflict in the enqueue/dequeue operations.
  Incorrect Configuration: There might be a misconfiguration in the enqueue server or the way the enqueue/dequeue operations are set up in the application.
  Resource Locking: If a resource is locked by one process and another process tries to access it, this can lead to enqueue/dequeue errors.
  Code Issues: There may be issues in the ABAP code where enqueue/dequeue functions are called incorrectly or inappropriately.
  
  Solution:
  
  Check for Locks: Use transaction code SM12 to check for any existing locks that might be causing the issue. If you find any unnecessary locks, you can delete them if appropriate.
  Review Code: If you have access to the ABAP code, review the sections where enqueue and dequeue functions are called. Ensure that they are being used correctly and that there are no logical errors.
  Single vs. Multiple Enqueue/Dequeue: The error message suggests using either single or multiple enqueue/dequeue operations. Depending on your application logic, you may need to adjust your code to use one method consistently.
  
  Single Enqueue/Dequeue: Use this when you are dealing with a single object or resource.
  Multiple Enqueue/Dequeue: Use this when you need to lock or unlock multiple objects at once.
  
  
  Check Configuration: Ensure that the enqueue server is properly configured and running. You can check the status of the enqueue server in transaction SM51.
  Consult SAP Notes: Look for any relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions to common issues.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM51: To check the status of application servers.
  SE37: To view and analyze function modules related to enqueue/dequeue.
  
  
  Documentation: Refer to SAP documentation on enqueue and dequeue mechanisms for a deeper understanding of how they work and best practices for implementation.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be beneficial to involve your SAP Basis team or consult SAP support for further assistance.