Message type: E = Error
Message class:  CNV_CDMC_UCIA - CDMC Upgrade/Change Impact Analysis 
Message number: 001
Message text: Select only existing entries from table RELEASEMAP
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The SAP error message CNV_CDMC_UCIA001 typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or the SAP S/4HANA Migration Cockpit. This specific error indicates that the system is trying to access entries in the RELEASEMAP table that do not exist.
Cause: Missing Entries: The most common cause of this error is that the RELEASEMAP table does not contain the expected entries. This can happen if the migration process was not set up correctly or if there were issues during the data preparation phase. Incorrect Configuration: If the configuration for the migration is incorrect or incomplete, it may lead to attempts to access non-existent entries. Data Consistency Issues: There may be inconsistencies in the data that prevent the system from finding the required entries in the RELEASEMAP table.
Solution: Check the RELEASEMAP Table: Verify that the RELEASEMAP table contains the necessary entries. You can do this by executing a SQL query
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