How To Fix USMD1045 - Data model &1: Data element of relationship &2 is ambiguous

USMD1045 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 045

• Message text: Data model &1: Data element of relationship &2 is ambiguous

What causes this issue?

Relationships with the same name must reference the same data element
for all entity types.

System Response

The data model <ZH>cannot</> be saved.

How to fix this error?

Adjust the names of the relationships or specify the same data element
for the relationships.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1045 - Data model &1: Data element of relationship &2 is ambiguous ?

  The SAP error message USMD1045 indicates that there is an ambiguity in the data model related to a specific relationship. This typically occurs when the system cannot determine which data element to use for a relationship because there are multiple candidates that could fulfill the requirement.
  
  Cause:
  The ambiguity usually arises from one of the following scenarios:
  
  Multiple Data Elements: There are multiple data elements defined for the same relationship in the data model, and the system cannot decide which one to use.
  Incorrect Configuration: The data model may have been incorrectly configured, leading to overlapping or conflicting definitions.
  Changes in Data Model: Recent changes to the data model or relationships may have introduced inconsistencies.
  
  
  Solution:
  To resolve the USMD1045 error, you can follow these steps:
  
  
  Check Data Model Configuration:
  
  Go to the data model in the SAP system and review the relationships defined.
  Identify the relationship indicated in the error message and check the data elements associated with it.
  
  
  
  Eliminate