Message type: E = Error
Message class:  HRPSGB_HER - HR PS GB Higher Education Messages (USS, HESA etc) 
Message number: 137
Message text: At least one of the fields 'Act. code', 'Cost cent.', 'Proport.' initial
While some of the fields 'Activity Code', 'Cost Centre', 'Proportion in
Cost Centre' related to the same cost centre are filled on infotype 'HE
Contract Details' (0615) for presonnel number &V1&, at least 1 of these
fields is initial. This will lead to erorr during preparation of HESA
NISR return.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Enter the information in all fields  consistently.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message HRPSGB_HER137 indicates that there is an issue with the input data in a specific transaction or process related to HR (Human Resources) or payroll. The error message states that at least one of the fields 'Act. code' (Activity code), 'Cost cent.' (Cost center), or 'Proport.' (Proportion) is not filled in or is left empty when it is required.
Cause: Missing Data: The most common cause of this error is that one or more of the required fields (Activity code, Cost center, Proportion) have not been filled in during the data entry process. Incorrect Configuration: There may be configuration settings in the system that require these fields to be mandatory, and they are not being populated correctly. Data Entry Error: Users may have overlooked these fields while entering data, leading to incomplete records.
Solution: Check Input Fields: Review the transaction or screen where the error occurred and ensure that all required fields (Activity
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