How To Fix /RPM/SUBSTITUTE001 - User is not unique; choose a value using search help

SAP Error Message - Details

• Message type: E = Error

• Message class: /RPM/SUBSTITUTE -

• Message number: 001

• Message text: User is not unique; choose a value using search help

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /RPM/SUBSTITUTE001 - User is not unique; choose a value using search help ?

  The SAP error message /RPM/SUBSTITUTE001 User is not unique; choose a value using search help typically occurs in the context of the SAP Resource and Portfolio Management (RPM) module. This error indicates that the system has found multiple entries for a user in the database, and it cannot determine which one to use without further specification.
  Cause:
  
  
  Multiple User Entries: The primary cause of this error is that there are multiple user records in the system that match the criteria you are using. This can happen if:
  
  There are users with similar names or IDs.
  There are duplicate entries in the user master data.
  
  
  
  Configuration Issues: Sometimes, the configuration of the user roles or authorizations may lead to ambiguity in user identification.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Use Search Help: When prompted with this error, you should use the search help feature provided by SAP. This allows you to specify additional criteria to narrow down the list of users. 
  
  Click on the search help icon (usually a magnifying glass) next to the user field.
  Enter more specific information (like user ID, email, etc.) to filter the results.
  
  
  
  Check User Master Data: 
  
  Go to transaction code SU01 (User Maintenance) and check for duplicate user entries.
  Ensure that each user has a unique identifier and that there are no duplicates.
  
  
  
  Review Authorizations: 
  
  Check the roles and authorizations assigned to users to ensure that they are correctly configured and do not lead to ambiguity.
  
  
  
  Consult with SAP Basis Team: If you are unable to resolve the issue, it may be helpful to consult with your SAP Basis or security team. They can assist in checking the user master data and resolving any underlying issues.
  
  
  System Configuration: If the problem persists, it may be necessary to review the system configuration related to user management and ensure that it aligns with best practices.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SU01 (User Maintenance), SU10 (Mass User Maintenance), and PFCG (Role Maintenance) for managing user data and roles.
  SAP Notes: Check SAP Notes for any known issues or patches related to user management in your specific version of SAP.
  Documentation: Refer to SAP Help documentation for detailed information on user management and search help functionality.
  
  By following these steps, you should be able to resolve the error and ensure that user identification is unique within the system.