Message type: E = Error
Message class:  CNV_00001 - Message class for CWB settings maintenance programs 
Message number: 005
Message text: Program &1 is already running
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The SAP error message CNV_00001005 indicates that a specific program (denoted by &1) is already running in the system. This error typically occurs in the context of data migration or conversion processes, often related to the SAP S/4HANA migration or other data transformation tasks.
Cause: Concurrent Execution: The program you are trying to run is already executing in the background or foreground. This can happen if the same job was started multiple times, either manually or through a scheduled job. Long-Running Processes: If the program is designed to take a long time to complete, it may still be running when you attempt to start it again. System Lock: Sometimes, a system lock or a session issue can cause the program to appear as if it is still running.
Solution: Check Running Jobs: Use transaction codes like SM37 (Job Monitoring) to check if the program is currently running. Look for jobs with the same name and see
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