How To Fix 42843 - There is no unique relationship between the source and display objects

42843 - Overview

• Message type: E = Error

• Message class: 42 - Information Workbench

• Message number: 843

• Message text: There is no unique relationship between the source and display objects

What causes this issue?

You have one of the following errors:
Different source objects have relationships to the same target object.
A source object has multiple relationships to the same target object.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Compare the content object displayed in the Web Browser with the
corresponding source object.
If the content object displayed in the Web Browser contains different
information from the source object, correct the difference and save the
source object.
If the content object displayed in the Web Browser is identical with
the source object, save the source object.
The target object is created again and the relationsip to the target
object is restored.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

42843 - Details

• The SAP error message 42843, which states "There is no unique relationship between the source and display objects," typically occurs in the context of SAP Business Warehouse (BW) or when working with InfoObjects, queries, or data models. This error indicates that the system is unable to establish a unique mapping between the source data and the display objects, which can lead to issues in reporting or data retrieval.
  Causes:
  
  Non-Unique Keys: The source data may contain non-unique keys, meaning that there are multiple records in the source that correspond to the same key in the display object.
  Incorrect Data Model: The data model may not be properly defined, leading to ambiguity in how data is related.
  Missing Relationships: There may be missing or incorrectly defined relationships between the source and display objects in the data model.
  Data Inconsistencies: Inconsistencies in the data, such as duplicates or missing values, can also lead to this error.
  
  Solutions:
  
  Check Data