How To Fix RP251 - Enter different comparison personnel numbers

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 251

• Message text: Enter different comparison personnel numbers

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RP251 - Enter different comparison personnel numbers ?

  The SAP error message RP251 ("Enter different comparison personnel numbers") typically occurs in the context of personnel administration or payroll processing when a user attempts to compare or analyze data for personnel numbers that are the same or not valid for the operation being performed.
  Cause:
  
  Same Personnel Numbers: The most common cause of this error is that the user has entered the same personnel number in both comparison fields. The system requires two distinct personnel numbers for comparison purposes.
  Invalid Personnel Numbers: If one or both of the personnel numbers entered do not exist in the system or are not valid for the operation being performed, this error may also occur.
  Data Entry Error: There may be a typographical error in entering the personnel numbers.
  
  Solution:
  
  Check Personnel Numbers: Ensure that the personnel numbers entered in the comparison fields are different and valid. Double-check for any typographical errors.
  Use Valid Personnel Numbers: Make sure that both personnel numbers correspond to active employees in the system. If one of the numbers refers to a terminated employee or does not exist, it may lead to this error.
  Re-enter Data: Clear the fields and re-enter the personnel numbers, ensuring they are distinct and correctly entered.
  Consult Documentation: If you are unsure about the personnel numbers or the context in which you are working, refer to the relevant SAP documentation or user guides for further clarification.
  
  Related Information:
  
  Transaction Codes: This error may occur in various transaction codes related to personnel administration, such as PA20 (Display HR Master Data), PA30 (Maintain HR Master Data), or payroll-related transactions.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its system, and there may be specific notes addressing this error.
  User Authorization: Ensure that you have the necessary authorizations to access the personnel data you are trying to compare. Lack of proper authorization can sometimes lead to unexpected errors.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who can provide further assistance.