How To Fix 42846 - There is no unique relationship between a display and a source object

SAP Error Message - Details

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 846

• Message text: There is no unique relationship between a display and a source object

INCLUDE 42843 OBJECT DOKU ID NA

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 42846 - There is no unique relationship between a display and a source object ?

  The SAP error message 42846, "There is no unique relationship between a display and a source object," typically occurs in the context of SAP's data modeling or reporting tools, such as SAP BW (Business Warehouse) or SAP HANA. This error indicates that the system is unable to establish a clear, unique relationship between a display object (like a report or a query) and its underlying source object (like a data source or InfoProvider).
  Causes:
  
  Multiple Relationships: The display object may be linked to multiple source objects, leading to ambiguity in data retrieval.
  Incorrect Configuration: The configuration of the display object or the source object may not be set up correctly, causing the system to fail in identifying a unique relationship.
  Data Model Changes: Changes in the underlying data model (like changes in InfoObjects, InfoProviders, or data sources) that have not been reflected in the display object.
  Missing Keys: The display object may not have the necessary key fields defined to establish a unique relationship with the source object.
  
  Solutions:
  
  Check Relationships: Review the relationships between the display object and the source object. Ensure that there is a unique mapping and that no multiple relationships exist.
  Adjust Configuration: Go into the configuration of the display object and ensure that it is correctly set up to point to the intended source object. This may involve adjusting the settings in the query designer or report designer.
  Update Data Model: If there have been changes to the data model, ensure that the display object is updated accordingly. This may involve re-activating the display object or refreshing the metadata.
  Define Key Fields: Ensure that the necessary key fields are defined in the display object to establish a unique relationship with the source object.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the error message and the context in which it occurs.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  Testing: After making changes, test the display object to ensure that the error is resolved and that data is being retrieved correctly.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with an SAP expert or technical support for further assistance.