Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 657
Message text: For OBART=&1: &2=&3 : Org. assignment to company code is not possible
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
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The SAP error message CNV20551657 typically indicates an issue related to the assignment of an organizational unit (like a controlling area, profit center, or cost center) to a company code. The error message format suggests that there is a specific organizational assignment that is not valid or cannot be processed.
Cause: The error can occur due to several reasons, including but not limited to: Inconsistent Configuration: The organizational units may not be properly configured in the system. For example, the company code may not be linked to the controlling area or other organizational units correctly. Missing Master Data: The required master data for the organizational unit may be missing or incomplete. This could include missing entries in tables related to company codes, controlling areas, or other organizational structures. Invalid Relationships: There may be invalid relationships between the organizational units. For instance, a controlling area may not be assigned to the company code, or the assignment
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