Message type: E = Error
Message class:  CNV_CMIS_M_10 - Message class for Migration 
Message number: 603
Message text: Error while calling the FM CNV_MBT_DEL_UPG_CLNT_INFO.
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The SAP error message CNV_CMIS_M_10603 typically occurs during a data migration or conversion process, particularly when using the SAP Conversion Tools or during a system upgrade. This error indicates that there was an issue while calling the function module CNV_MBT_DEL_UPG_CLNT_INFO.
Cause: The error can be caused by several factors, including but not limited to: Data Inconsistencies: There may be inconsistencies or issues with the data being processed, which can lead to failures in the function module.
Configuration Issues: Incorrect configuration settings in the migration tools or the system can lead to this error. Authorization Issues: The user executing the migration may not have the necessary authorizations to perform the operation. System Performance: If the system is under heavy load or if there are performance issues, it may lead to timeouts or failures in executing the function module. Missing or Incomplete Data: Required data for the migration process may be missing or incomplete.
Solution: To resolve the CNV_CMIS_M_10603 error, you
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