Message type: E = Error
Message class:  HRPIQ00ACCOUNTING - Campus Management - Student Accounting 
Message number: 651
Message text: Contract account &4 of BP &3 is already assigned CO &1 with COT &2
The contract object &V1& with contract object type &V2& already exists
in contract account &V4& of business partner &V3&.
You may therefore not assign another contract object with contract
object type &V2& to contract account &V4& of business partner &V3&.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message HRPIQ00ACCOUNTING651 indicates that there is an issue with the assignment of a contract account to a business partner (BP) in the context of a cost object (CO) and cost object type (COT). Specifically, it means that the contract account you are trying to assign is already linked to another cost object.
Cause: Duplicate Assignment: The contract account is already assigned to a different cost object, which prevents it from being assigned to the new one.
Configuration Issues: There may be configuration settings in the system that restrict the assignment of contract accounts to multiple cost objects. Data Integrity: There could be data integrity issues where the system has not been updated correctly, leading to conflicts in assignments.
Solution: Check Existing Assignments: Review the current assignments of the contract account to see which cost object it is already linked to. You can do this by navigating to the relevant transaction in SAP that
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