Message type: E = Error
Message class:  CNV_20900 - Message class for package CNV_20900 
Message number: 146
Message text: Account group &1 does not belong to Vendor &2
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The SAP error message CNV_20900146 indicates that there is an issue with the account group associated with a vendor in the system. Specifically, the error states that the account group specified does not belong to the vendor in question. This can occur during data migration or when trying to create or modify vendor master data.
Cause: Incorrect Account Group Assignment: The account group assigned to the vendor may not be valid or may not match the vendor's configuration. Data Migration Issues: If you are migrating data from another system, the mapping of account groups to vendors may not have been done correctly.
Configuration Issues: The account group may not be properly configured in the system, or the vendor may not be assigned to the correct company code or purchasing organization. Authorization Issues: Sometimes, the user may not have the necessary authorizations to access or modify the vendor data.
Solution: Check Account Group Configuration: Go to the transaction code
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