Message type: E = Error
Message class:  CNV_CDOP_CA - CDOP Clearing Analysis 
Message number: 155
Message text: Required locks could not be set
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The SAP error message CNV_CDOP_CA155: Required locks could not be set typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system was unable to acquire the necessary locks on the database objects that are required for the migration process to proceed safely. Causes: Concurrent Processes: Other processes or transactions may be holding locks on the same database objects that the migration process needs to access. Long-Running Transactions: If there are long-running transactions in the system, they may prevent the migration process from acquiring the necessary locks. Database Locking Issues: There may be issues related to database locking mechanisms that prevent the migration tool from obtaining the required locks.
Configuration Issues: Incorrect configuration of the migration tool or the underlying database settings may lead to locking problems. Solutions: Check for Active Processes: Use transaction codes like SM12 (to check for locks)
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