How To Fix 5C101 - Date of birth key &1 differs from AHV number. Proposal: &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: 5C - HR: Messages for Switzerland

• Message number: 101

• Message text: Date of birth key &1 differs from AHV number. Proposal: &2.

What causes this issue?

The date of birth code (the seventh and eighth digit of the AHV number)
is calculated as follows:
XX = (31 * Mx) + day of birth.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Mx refers to the month's position in the quarter (M1, M2, M3).
Quarter ,,M1,,M2,,M3
1,,0 (January) ,,1 (February) ,,2 (March)
2,,0 (April) ,,1 (May) ,,2 (June)
3,,0 (July) ,,1 (August) ,,2 (September)
4,,0 (October) ,,1 (November) ,,2 (December)
<ZH>&example&</>
Birthday (01.01.1980): XX = 01 (Mx = 0)
Birthday (15.05.1980): XX = 46 (Mx = 1)
Birthday (30.12.1980): XX = 92 (Mx = 2)

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5C101 - Date of birth key &1 differs from AHV number. Proposal: &2. ?

  The SAP error message 5C101, which states "Date of birth key &1 differs from AHV number. Proposal: &2," typically occurs in the context of employee data management, particularly when dealing with social security or pension-related information in Switzerland (AHV stands for "Alters- und Hinterlassenenversicherung," which is the Swiss old-age and survivors' insurance).
  Cause:
  This error arises when there is a mismatch between the date of birth associated with an employee's record and the date of birth derived from their AHV number. The AHV number is a unique identifier for individuals in the Swiss social security system, and it includes encoded information, including the date of birth. If the date of birth in the employee's master data does not match the date of birth derived from the AHV number, the system generates this error.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Verify Employee Data: Check the employee's master data in SAP to ensure that the date of birth is entered correctly. This can be done in transaction code PA30 (Maintain HR Master Data).
  
  
  Check AHV Number: Verify the AHV number for the employee. Ensure that it is correctly entered and corresponds to the employee's actual AHV number.
  
  
  Cross-Check Dates: Compare the date of birth in the employee's master data with the date of birth that can be derived from the AHV number. If there is a discrepancy, you will need to correct one of the entries.
  
  
  Update Records: If the date of birth in the employee's master data is incorrect, update it to match the AHV number. Conversely, if the AHV number is incorrect, it may need to be corrected based on official documentation.
  
  
  Consult with HR: If you are unsure about the correct information, consult with your HR department or the employee to confirm the accurate date of birth and AHV number.
  
  
  Reprocess the Transaction: After making the necessary corrections, reprocess the transaction that generated the error to see if it resolves the issue.
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for more details on handling employee master data and AHV-related processes.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as PA30 (Maintain HR Master Data) and PA40 (Personnel Actions) for managing employee records.
  Data Privacy: Ensure that any changes made to personal data comply with data protection regulations, such as GDPR, especially when handling sensitive information like dates of birth and social security numbers.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP support team or consult with SAP experts for further troubleshooting.