How To Fix SDEST108 - Alias user and normal user cannot be combined.

SAP Error Message - Details

• Message type: E = Error

• Message class: SDEST - Messages for RFC Destinations

• Message number: 108

• Message text: Alias user and normal user cannot be combined.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDEST108 - Alias user and normal user cannot be combined. ?

  The SAP error message SDEST108 indicates that there is an issue with the combination of alias users and normal users in the context of user management or authorization in SAP. This error typically arises when there is an attempt to assign or combine an alias user with a normal user in a way that is not permitted by the system.
  Cause:
  
  User Type Conflict: The error occurs when an alias user (a user that is created as an alternative name for another user) is being treated or combined with a normal user (a standard user account) in a manner that violates SAP's user management rules.
  Authorization Issues: There may be an attempt to assign roles or authorizations that are not compatible between the two types of users.
  Configuration Errors: Incorrect configuration in user management settings or roles that lead to this conflict.
  
  Solution:
  
  Review User Types: Ensure that you are not trying to combine or assign roles to both alias and normal users inappropriately. Check the user types in the user management transaction (e.g., SU01).
  Separate User Management: If you need to manage alias users and normal users, do so separately. Ensure that roles and authorizations are assigned correctly based on the user type.
  Check Authorizations: Review the authorizations assigned to both user types. Make sure that the roles assigned to alias users do not conflict with those of normal users.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on managing alias users and normal users.
  SAP Notes: Check for any relevant SAP Notes that may address this issue or provide additional guidance.
  
  Related Information:
  
  User Management Transactions: Familiarize yourself with transactions like SU01 (User Maintenance), SU10 (Mass User Maintenance), and SUIM (User Information System) for managing users and roles.
  SAP Security Best Practices: Follow best practices for user management and security to avoid conflicts and ensure compliance with organizational policies.
  SAP Community and Forums: Engage with the SAP community or forums for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis or security team for further investigation and resolution.