Message type: E = Error
Message class:  CNV20305 - Messages for conversion packages in CO 
Message number: 056
Message text: Number range level for CoAr &1 interval &2 is set to &3.
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The SAP error message CNV20305056 typically relates to issues with number ranges in the context of the SAP system, particularly during data migration or conversion processes. This error indicates that the number range level for a specific object (in this case, CoAr) and its associated interval is set to a value that is not valid or not configured correctly.
Cause: Incorrect Number Range Configuration: The number range for the specified object (CoAr) may not be properly defined in the system. This could be due to missing intervals or incorrect settings. Data Migration Issues: If you are performing a data migration, the number range settings may not align with the data being migrated, leading to conflicts. Authorization Issues: Sometimes, the user may not have the necessary authorizations to access or modify the number range settings.
Solution: Check Number Range Configuration: Go to the transaction code SNRO (Number Range Objects). Look for the number range object related to CoAr and
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