How To Fix /SAPAPO/CIF_NQRFC050 - Foreign Enqueue

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CIF_NQRFC -

• Message number: 050

• Message text: Foreign Enqueue

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CIF_NQRFC050 - Foreign Enqueue ?

  The SAP error message /SAPAPO/CIF_NQRFC050 Foreign Enqueue typically occurs in the context of the Core Interface (CIF) when there is an issue with the enqueue mechanism in SAP. This error is related to the integration between SAP Advanced Planning and Optimization (APO) and the SAP ERP system, particularly when trying to perform operations that require exclusive access to certain resources.
  Cause:
  
  Enqueue Lock: The error indicates that a foreign enqueue lock is preventing the operation from proceeding. This can happen if another process is holding a lock on the same object that the CIF process is trying to access.
  System Configuration: Misconfiguration in the CIF setup or issues with the RFC (Remote Function Call) connections between the systems can also lead to this error.
  Network Issues: Temporary network issues or connectivity problems between the SAP ERP and APO systems can cause enqueue locks to not be released properly.
  Long-running Transactions: If there are long-running transactions in the system, they may hold locks longer than expected, leading to this error.
  
  Solution:
  
  Check Locks: Use transaction code SM12 to check for existing locks in the system. Identify the user or process holding the lock and determine if it can be released.
  Release Locks: If you find unnecessary locks, you can manually delete them (if you have the necessary authorizations) to allow the CIF process to proceed.
  Review CIF Configuration: Ensure that the CIF configuration is set up correctly. Check the settings in transaction CIF and ensure that the integration model is activated properly.
  Monitor Background Jobs: Check for any long-running background jobs that might be holding locks. You can use transaction SM37 to monitor and manage background jobs.
  Check RFC Connections: Verify the RFC connections between the SAP ERP and APO systems using transaction SM59. Ensure that they are configured correctly and are operational.
  System Performance: If the system is under heavy load, consider optimizing performance or scheduling jobs during off-peak hours to reduce contention for locks.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage locks.
  SM37: Monitor background jobs.
  SM59: Manage RFC connections.
  CIF: CIF configuration and monitoring.
  
  
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to this error. You can search the SAP Support Portal for notes related to CIF and enqueue issues.
  
  
  Documentation: Review the SAP documentation on CIF and enqueue mechanisms for a deeper understanding of how these components interact.
  
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.