How To Fix CRMS4_PS_BUFFER202 - Enqueue: Use either single or multiple Enqueue/Dequeue

SAP Error Message - Details

• Message type: E = Error

• Message class: CRMS4_PS_BUFFER - Social Services Buffer

• Message number: 202

• Message text: Enqueue: Use either single or multiple Enqueue/Dequeue

What causes this issue?

Both parameters IV_OBJECT and IT_OBJECTS are filled. You must only fill
one of them.

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 CRMS4_PS_BUFFER202 - Enqueue: Use either single or multiple Enqueue/Dequeue ?

  The SAP error message CRMS4_PS_BUFFER202 typically occurs in the context of enqueue and dequeue operations in SAP systems, particularly when dealing with the CRM (Customer Relationship Management) module. This error indicates that there is an issue with how the enqueue and dequeue operations are being handled, specifically that the system is expecting either a single or multiple enqueue/dequeue calls but is receiving a different format.
  Cause:
  
  Incorrect Enqueue/Dequeue Logic: The error often arises when the application logic is trying to enqueue or dequeue objects in a way that does not conform to the expected single or multiple operation format.
  Concurrency Issues: If multiple processes are trying to access the same resource simultaneously, it can lead to conflicts in enqueue/dequeue operations.
  Programming Errors: There may be a bug in the custom code or configuration that is leading to improper handling of enqueue/dequeue calls.
  
  Solution:
  
  Review Code Logic: Check the code where the enqueue and dequeue operations are being called. Ensure that they are being used correctly according to the SAP guidelines. If you are using a custom implementation, verify that it adheres to the expected patterns.
  Use Correct Function Modules: Make sure you are using the appropriate function modules for enqueue and dequeue operations. For example, use ENQUEUE_<object> for enqueueing and DEQUEUE_<object> for dequeueing.
  Check for Concurrency: If the error is related to concurrent access, consider implementing locking mechanisms or reviewing the transaction logic to avoid conflicts.
  Debugging: Use the SAP debugger to trace the execution flow and identify where the enqueue/dequeue calls are failing. This can help pinpoint the exact location and reason for the error.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve known issues related to enqueue/dequeue operations.
  
  Related Information:
  
  Enqueue/Dequeue Mechanism: In SAP, the enqueue mechanism is used to lock objects to prevent concurrent access, while the dequeue mechanism releases those locks. Understanding how these mechanisms work is crucial for troubleshooting related errors.
  SAP Documentation: Refer to the official SAP documentation for detailed information on enqueue and dequeue operations, including best practices and examples.
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks) and SM21 (to check system logs) for additional insights into the state of the system when the error occurs.
  
  By following these steps, you should be able to identify the root cause of the CRMS4_PS_BUFFER202 error and implement a suitable solution.