How To Fix D0526 - STDO: Cyclic group definition (group ID: &, ID: &)

SAP Error Message - Details

• Message type: E = Error

• Message class: D0 - Machine-level ABAP/4 Dictionary texts (e.g. debugging)

• Message number: 526

• Message text: STDO: Cyclic group definition (group ID: &, ID: &)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D0526 - STDO: Cyclic group definition (group ID: &, ID: &) ?

  The SAP error message D0526, which indicates a "Cyclic group definition," typically occurs when there is a circular reference in the definition of a group in the SAP system. This can happen in various contexts, such as when defining authorization groups, user groups, or other types of groups where members reference each other in a loop.
  Cause:
  The error arises when:
  
  A group is defined in such a way that it includes itself directly or indirectly through other groups. For example, if Group A includes Group B, and Group B includes Group A, this creates a cyclic dependency.
  The system detects that resolving the group definitions would lead to an infinite loop.
  
  Solution:
  To resolve the D0526 error, you can follow these steps:
  
  
  Identify the Groups Involved: Check the group definitions mentioned in the error message (the placeholders & will be replaced with actual group IDs). 
  
  
  Review Group Membership: Examine the membership of the groups involved. Look for any circular references where one group includes another that eventually leads back to the original group.
  
  
  Modify Group Definitions:
  
  Remove or adjust the group memberships to eliminate the cyclic reference.
  Ensure that each group only includes other groups that do not lead back to itself.
  
  
  
  Test Changes: After making the necessary adjustments, test the group definitions to ensure that the error no longer occurs.
  
  
  Documentation: Document the changes made to the group definitions for future reference and to help prevent similar issues.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SU01 (User Maintenance), PFCG (Role Maintenance), or SU10 (Mass User Maintenance) to manage user and group definitions.
  Authorization Issues: If this error is related to authorization groups, ensure that the roles and authorizations are correctly assigned without circular dependencies.
  SAP Notes: Check SAP Notes and Knowledge Base Articles for any specific patches or updates related to this error message, as there may be known issues or fixes provided by SAP.
  
  If the problem persists after following these steps, consider reaching out to your SAP Basis or Security team for further assistance, as they may have additional tools or insights to help resolve the issue.