Message type: E = Error
Message class:  CNV20400 - Message class CNV20400 
Message number: 023
Message text: No merge takes place in table &1
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The SAP error message CNV20400023: No merge takes place in table &1 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system attempted to merge records in a specified table, but no actual merging occurred due to certain conditions not being met.
Cause: The error can be caused by several factors, including: No Duplicate Records: The records in the specified table do not have duplicates that can be merged. The merge operation is designed to consolidate duplicate entries, and if there are none, the operation will not proceed. Data Integrity Issues: There may be constraints or rules in place that prevent merging, such as foreign key constraints or unique indexes that are violated by the merge operation. Incorrect Configuration: The configuration settings for the migration or conversion process may not be set up correctly, leading to the inability
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