How To Fix PSSC_BUFFER074 - Wrong calling sequence - entry to be enqueued is already in buffer

SAP Error Message - Details

• Message type: E = Error

• Message class: PSSC_BUFFER - Social Services Buffer

• Message number: 074

• Message text: Wrong calling sequence - entry to be enqueued is already in buffer

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message PSSC_BUFFER074 - Wrong calling sequence - entry to be enqueued is already in buffer ?

  The SAP error message PSSC_BUFFER074 indicates that there is a problem with the sequence of operations related to the enqueue mechanism in SAP. Specifically, it suggests that an entry that is supposed to be enqueued is already present in the buffer, which can lead to inconsistencies or conflicts in data processing.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Incorrect Sequence of Operations: The application is trying to enqueue an object that is already in the buffer, which violates the expected sequence of enqueue and dequeue operations.
  Concurrency Issues: Multiple processes or transactions may be trying to access or modify the same data simultaneously, leading to conflicts.
  Programming Errors: There may be a bug in the custom code or logic that handles the enqueueing and dequeueing of objects.
  
  Solution:
  To resolve the PSSC_BUFFER074 error, consider the following steps:
  
  
  Check the Code Logic: Review the custom code or the logic that is responsible for enqueueing and dequeueing the objects. Ensure that the enqueue operation is only called when the object is not already in the buffer.
  
  
  Implement Proper Error Handling: Add error handling to manage situations where an object is already enqueued. This can help prevent the application from attempting to enqueue an object that is already in the buffer.
  
  
  Review Transaction Management: Ensure that transactions are managed correctly, and that enqueue and dequeue operations are performed in the correct order. This may involve checking for locks or other synchronization mechanisms.
  
  
  Debugging: Use debugging tools to trace the execution flow and identify where the incorrect sequence is occurring. This can help pinpoint the exact location in the code that is causing the issue.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error. There may be known issues or updates that can resolve the problem.
  
  
  System Configuration: Ensure that the system configuration related to enqueueing and buffering is set up correctly. This includes checking the settings for the enqueue server and any related parameters.
  
  
  Related Information:
  
  SAP Enqueue Mechanism: Understanding how the enqueue mechanism works in SAP can provide insights into how to manage locks and buffers effectively.
  SAP Basis Documentation: Refer to SAP Basis documentation for more information on enqueue and dequeue operations, as well as best practices for managing concurrency.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.