How To Fix RP448 - Unable to determine external person ID

SAP Error Message - Details

• Message type: E = Error

• Message class: RP - Error Messages for Infotype Module Pools

• Message number: 448

• Message text: Unable to determine external person ID

What causes this issue?

The system attempts to generate the external person ID in <ZK>infotype
0709</>.
According to the system settings, the value of the personal
identification number from the Personal Data infotype (P0002-PERID)
should be stored in the external person ID.
Since no personal identification number exists, the system cannot
generate an external person ID in this case.

System Response

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

How to fix this error?

Check the system settings and if necessary correct the external person
ID for the current personnel number directly in <ZK>infotype 0709</>.

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 RP448 - Unable to determine external person ID ?

  The SAP error message RP448 "Unable to determine external person ID" typically occurs in the context of HR (Human Resources) processes, particularly when dealing with employee data and external identification numbers. This error can arise in various scenarios, such as during payroll processing, data uploads, or when trying to access employee records.
  Causes:
  
  
  Missing Data: The external person ID may not be maintained in the system for the employee in question. This could happen if the employee record was not fully created or if the data was not properly imported.
  
  
  Configuration Issues: There may be configuration issues in the system related to the integration of external systems or the mapping of employee IDs.
  
  
  Data Consistency: There could be inconsistencies in the data, such as duplicate entries or incorrect mappings between internal and external IDs.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access the external person ID data.
  
  
  Solutions:
  
  
  Check Employee Master Data: Verify that the employee's master data is complete and that the external person ID is correctly maintained. You can do this by navigating to the employee's record in the SAP HR module.
  
  
  Maintain External Person ID: If the external person ID is missing, you may need to enter it manually or ensure that it is populated through the appropriate data upload or integration process.
  
  
  Review Configuration Settings: Check the configuration settings related to external person IDs in the SAP system. Ensure that the mapping between internal and external IDs is correctly set up.
  
  
  Data Consistency Checks: Run data consistency checks to identify any duplicate or incorrect entries that may be causing the issue.
  
  
  Authorization Check: Ensure that the user encountering the error has the necessary authorizations to access the external person ID data.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to this error message for any specific guidance or patches that may address the issue.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like PA20 (Display HR Master Data) or PA30 (Maintain HR Master Data) to check and maintain employee records.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or solutions for this specific error.
  Integration with Other Systems: If your SAP system is integrated with other systems (like third-party payroll systems), ensure that the integration is functioning correctly and that data is being transferred as expected.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who specializes in SAP HR modules.