Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 402
Message text: There is a data record with the same key in CNV_20551_TSTRUC
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The SAP error message CNV20551402 indicates that there is a duplicate data record with the same key in the table CNV_20551_TSTRUC. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
Cause: The error is caused by the presence of multiple entries in the CNV_20551_TSTRUC table that share the same key. This can happen due to: Duplicate Data Entries: The source data being migrated may contain duplicate records that are being inserted into the target table. Incorrect Mapping: The mapping configuration may not be set up correctly, leading to the same key being generated for different records. Data Preparation Issues: Prior data preparation steps may not have adequately cleaned or deduplicated the data.
Solution: To resolve this error, you can take the following steps: Identify Duplicates: Query the CNV_20551_TSTRUC table to identify the duplicate records. You can use SQL queries to
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