How To Fix UACC055 - Link between internal number &1 and &2 is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: UACC - Message Class for Concurrent Costing Adapter

• Message number: 055

• Message text: Link between internal number &1 and &2 is not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UACC055 - Link between internal number &1 and &2 is not allowed ?

  The SAP error message UACC055, which states "Link between internal number &1 and &2 is not allowed," typically occurs in the context of authorization management, particularly when dealing with user roles, profiles, or authorization objects. This error indicates that there is an attempt to create a link or relationship between two entities (like users, roles, or authorization objects) that is not permitted by the system's configuration or rules.
  Causes:
  
  Authorization Issues: The user may not have the necessary authorizations to create or modify the link between the specified internal numbers.
  Configuration Restrictions: The system may have specific configurations that prevent certain types of links from being established. For example, certain roles may not be allowed to be assigned to specific users or groups.
  Data Integrity Constraints: There may be integrity constraints in place that prevent the linking of certain objects due to business rules or data integrity requirements.
  Incorrect Object Types: The internal numbers may refer to incompatible object types (e.g., trying to link a user to a role that is not compatible).
  
  Solutions:
  
  Check Authorizations: Ensure that the user attempting to create the link has the necessary authorizations. This may involve reviewing the user's roles and profiles to ensure they have the required permissions.
  Review Configuration: Check the configuration settings in the authorization management area to see if there are any restrictions on the types of links that can be created. This may involve consulting with a system administrator or security consultant.
  Validate Object Types: Ensure that the internal numbers being linked are of compatible types. For example, if linking a user to a role, ensure that the role is valid and appropriate for the user.
  Consult Documentation: Refer to SAP documentation or support notes related to authorization management for any specific guidelines or known issues that may apply to your situation.
  Error Logs: Check the system logs for any additional error messages or warnings that may provide more context about why the link is not allowed.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  Authorization Management: Familiarize yourself with the concepts of roles, profiles, and authorization objects in SAP, as understanding these can help in diagnosing and resolving authorization-related issues.
  Transaction Codes: Use transaction codes like SU01 (User Maintenance), PFCG (Role Maintenance), and SUIM (User Information System) to manage users and roles effectively.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support or a qualified SAP consultant for further assistance.