How To Fix RSO_RES_QMSGS055 - Parent UID and child UID cannot be identical: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSO_RES_QMSGS - Messages directly related to Query Designer.

• Message number: 055

• Message text: Parent UID and child UID cannot be identical: &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSO_RES_QMSGS055 - Parent UID and child UID cannot be identical: &1 ?

  The SAP error message RSO_RES_QMSGS055, which states "Parent UID and child UID cannot be identical: &1," typically occurs in the context of SAP BW (Business Warehouse) when dealing with queries, data sources, or InfoProviders. This error indicates that there is a conflict where a parent object (like a query or an InfoObject) is being referenced in a way that it cannot be the same as its child object.
  Cause:
  The error is usually caused by one of the following scenarios:
  
  Incorrect Hierarchical Structure: The parent-child relationship in the data model is incorrectly defined, where a child object is mistakenly set to reference itself as its parent.
  Duplicate UIDs: There may be a situation where the Unique Identifiers (UIDs) for the parent and child objects are the same, which is not allowed in SAP BW.
  Configuration Issues: There might be issues in the configuration of the query or the data model that lead to this conflict.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Hierarchical Structure:
  
  Review the parent-child relationships in your data model. Ensure that no child object is set to reference itself as its parent.
  If you find any incorrect relationships, correct them in the modeling tools.
  
  
  
  Verify UIDs:
  
  Check the UIDs of the objects involved. Ensure that the parent and child UIDs are distinct and correctly assigned.
  If you find duplicates, you may need to reassign UIDs or create new objects as necessary.
  
  
  
  Review Query Configuration:
  
  If the error occurs while executing a query, review the query definition in the Query Designer. Ensure that the structure is correctly defined and that there are no circular references.
  
  
  
  Transport Issues:
  
  If this error appeared after a transport, check if the transport included any changes to the data model that could have caused this issue. You may need to revert or adjust the transport.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP BW you are using for any known issues or additional troubleshooting steps.
  
  
  
  Testing:
  
  After making changes, test the query or data model again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to this error message. SAP frequently updates its knowledge base with solutions for common issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP BW Documentation: Review the official SAP BW documentation for best practices in modeling and query design to avoid such issues in the future.
  
  By following these steps, you should be able to identify and resolve the cause of the RSO_RES_QMSGS055 error in your SAP BW environment.