How To Fix LM350 - Unable to lock at least one reservation

SAP Error Message - Details

• Message type: E = Error

• Message class: LM - Treasury: Limit Management

• Message number: 350

• Message text: Unable to lock at least one reservation

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LM350 - Unable to lock at least one reservation ?

  The SAP error message LM350 "Unable to lock at least one reservation" typically occurs in the context of inventory management and logistics when the system is unable to lock a reservation for a material. This can happen for several reasons, and understanding the cause is essential for resolving the issue.
  Causes:
  
  Concurrent Access: Another user or process may be trying to access or modify the same reservation at the same time, leading to a locking conflict.
  Reservation Status: The reservation may be in a status that does not allow it to be locked (e.g., it may be marked for deletion or already processed).
  System Configuration: There may be configuration issues in the system that prevent proper locking mechanisms from functioning.
  Database Locks: There could be database-level locks that are preventing the reservation from being accessed.
  User Authorizations: The user may not have the necessary authorizations to lock the reservation.
  
  Solutions:
  
  Check for Concurrent Users: Verify if another user is currently accessing or modifying the same reservation. If so, wait for them to complete their task.
  Review Reservation Status: Check the status of the reservation in question. If it is marked for deletion or has been processed, you may need to create a new reservation.
  System Logs: Review system logs for any additional error messages or warnings that could provide more context about the locking issue.
  Database Locks: Use transaction codes like SM12 to check for any database locks that may be affecting the reservation. If you find locks that are no longer needed, you can release them.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the action. You may need to consult with your SAP security team to verify and adjust user roles if necessary.
  Retry the Operation: Sometimes, simply retrying the operation after a short wait can resolve transient locking issues.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  SM12: To view and manage database locks.
  MB22: To change reservations.
  MB23: To display reservations.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search the SAP Support Portal for specific notes that may address this issue.
  Documentation: Review SAP documentation related to inventory management and reservations for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical support team for further investigation.