How To Fix /SAPAPO/CTM1824 - RFC queue &1 is still reserved, see qRFC monitor (outbound queues)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 824

• Message text: RFC queue &1 is still reserved, see qRFC monitor (outbound queues)

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 /SAPAPO/CTM1824 - RFC queue &1 is still reserved, see qRFC monitor (outbound queues) ?

  The SAP error message /SAPAPO/CTM1824 RFC queue &1 is still reserved, see qRFC monitor (outbound queues) typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an issue with the qRFC (queued Remote Function Call) processing. This error indicates that a specific outbound queue is reserved and cannot be processed until the reservation is released.
  Cause:
  
  Queue Reservation: The queue is reserved by another process or transaction, which prevents it from being processed. This can happen if a previous transaction that was using the queue did not complete successfully or is still running.
  Lock Issues: There may be locks on the queue due to ongoing processes or transactions that have not been released.
  System Errors: There could be underlying system errors or issues with the RFC destination that are causing the queue to remain reserved.
  
  Solution:
  
  
  Check qRFC Monitor: 
  
  Go to transaction SMQ1 (for outbound queues) or SMQ2 (for inbound queues) to check the status of the queues.
  Look for the specific queue mentioned in the error message and see if it is indeed reserved. 
  
  
  
  Release the Reservation:
  
  If you find that the queue is reserved, you may need to release it manually. This can be done by:
  
  Identifying the process that is holding the reservation and terminating it if necessary.
  If the process is stuck, you may need to use transaction SM21 to check the system log for any errors related to the process.
  
  
  
  
  
  Check for Errors:
  
  Review the logs for any errors that might indicate why the queue is reserved. This can include checking transaction SLG1 for application logs related to the APO processes.
  
  
  
  Restart the Process:
  
  If the process that reserved the queue is no longer needed, you can restart it or reprocess the relevant transactions.
  
  
  
  System Administration:
  
  If the issue persists, it may require deeper investigation by a system administrator or SAP Basis team to check for any underlying issues with the RFC connections or system performance.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SMQ1 - Monitor Outbound Queues
  SMQ2 - Monitor Inbound Queues
  SLG1 - Application Log
  SM21 - System Log
  
  
  RFC Configuration: Ensure that the RFC destinations are correctly configured and that there are no connectivity issues.
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to qRFC processing in APO.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it. If the problem continues, consider reaching out to SAP support for further assistance.