Message type: E = Error
Message class:  CNVMBTDEL620 - Texte related to client deletion 
Message number: 013
Message text: No free letter for the deletion program name available.
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The SAP error message CNVMBTDEL620013 indicates that there are no free letters available for the deletion program name in the context of a data migration or conversion process. This typically occurs in the context of using the SAP Data Migration Cockpit or similar tools where you need to define a deletion program for data that is being migrated or converted.
Cause: Exhausted Letter Space: The system has a limited number of letters (A-Z) that can be used for naming deletion programs. If all available letters have been used, you will encounter this error.
Configuration Issues: There may be configuration settings that limit the number of deletion programs or letters that can be used. System Limitations: The system may have reached a limit due to previous configurations or deletions that have not been properly managed.
Solution: Check Existing Deletion Programs: Review the existing deletion programs to see if any can be deleted or renamed to free up
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