Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 206
Message text: EKORG = & not to be deleted; w/o CoCd assignment; not valid for any plant
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The SAP error message CNV20551206 indicates that there is an issue with the deletion of a purchasing organization (EKORG) that does not have a company code (CoCd) assignment and is not valid for any plant. This error typically arises during data migration or when attempting to delete or modify purchasing organizations in the SAP system.
Cause: No Company Code Assignment: The purchasing organization (EKORG) you are trying to delete does not have an associated company code. In SAP, purchasing organizations must be linked to at least one company code to be valid. No Valid Plant Assignment: The purchasing organization is not assigned to any plant, which means it cannot be used in any purchasing transactions. Data Integrity Rules: SAP enforces data integrity rules that prevent the deletion of entities that are not properly configured or linked to other necessary entities.
Solution: Check Assignments: Verify if the purchasing organization is assigned to any company code. If it is
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