How To Fix USMD1109 - Data model &1, entity type &2: Relationship &3 was removed

USMD1109 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 109

• Message text: Data model &1, entity type &2: Relationship &3 was removed

What causes this issue?

Removing relationships with the relationship type <LS>Leading</> or
<LS>Qualifying</> is not allowed, since it causes key fields to be
deleted in the generated database tables. You can remove other
relationships, however.

System Response

If you have tried to remove a relationship with <LS>Leading</> or
<LS>Qualifying</> as the relationship type, there is a loss of data when
the database tables are regenerated.
If you have tried to delete another relationship, the corresponding
non-key field is deleted from the generated database table. The data in
the non-key field is lost.

How to fix this error?

Check if there is already master data stored in the generated database
tables.
Check if the relationship you want to remove is a <LS>Leading</> or
<LS>Qualifying</> relationship.

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 USMD1109 - Data model &1, entity type &2: Relationship &3 was removed ?

  The SAP error message USMD1109 indicates that a specific relationship in a data model has been removed. This message typically arises in the context of SAP Master Data Governance (MDG) when working with data models and entities.
  
  Cause:
  The error message USMD1109 can occur due to several reasons:
  
  Data Model Changes: The relationship between entities may have been intentionally removed during a data model change or upgrade.
  
  Configuration Issues: There may be inconsistencies in the configuration of the data model or the relationships defined within it.
  Data Integrity Violations: If there are existing records that violate the integrity of the relationship, the system may remove the relationship to maintain data integrity.
  Transport Issues: If the data model was transported from one system to another, there may have been issues during the transport process that led to the removal of the relationship.
  
  
  Solution:
  To resolve the USMD1109 error, consider the following steps:
  
  
  Check Data Model Configuration:
  
  Review the data model configuration