Message type: E = Error
Message class:  F2 - Master Data Maintenance: Customer, Vendor 
Message number: 603
Message text: & & is superior to contact person &
The partner to be deleted is superior to one or more contact persons.
Consequently, it must not be deleted.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message F2603 typically indicates an issue related to the contact person in a business partner or customer/vendor master data. The message suggests that the contact person specified is not valid or is not set up correctly in the system.
Cause: Invalid Contact Person: The contact person specified in the transaction does not exist in the system or is not assigned to the relevant business partner. Data Inconsistency: There may be inconsistencies in the master data, such as missing or incorrect entries for the contact person. Authorization Issues: The user may not have the necessary permissions to access or modify the contact person data.
Configuration Issues: There may be configuration settings in the SAP system that are not aligned with the business processes.
Solution: Verify Contact Person: Check if the contact person exists in the system. You can do this by navigating to the relevant master data transaction (e.g., BP for business partners) and searching
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