Message type: E = Error
Message class:  UACC - Message Class for Concurrent Costing Adapter 
Message number: 074
Message text: Link between &1 and &2 is locked and cannot be deleted
The link is locked and therefore cannot be deleted.
The link is not deleted
The lock must be released before you can delete the link.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message UACC074 indicates that there is a lock on the link between two objects (denoted as &1 and &2) in the system, preventing the deletion of that link. This typically occurs in scenarios involving authorization objects, roles, or other linked entities in the SAP system.
Cause: Locking Mechanism: The link between the two objects is locked due to ongoing processes or transactions that are currently using or referencing these objects. User Sessions: Another user or session may have the link open, which can prevent modifications or deletions. Authorization Issues: The user attempting to delete the link may not have the necessary authorizations to perform the action. System Configuration: Certain configurations or settings in the system may enforce locks on specific objects to maintain data integrity.
Solution: Check Locks: Use transaction code SM12 to check for any active locks on the objects involved. You can identify the user or session that is holding the lock
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