How To Fix USMD1063 - Data model &1, entity type &2: Not enough "leading" relationships

USMD1063 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 063

• Message text: Data model &1, entity type &2: Not enough "leading" relationships

What causes this issue?

Entity types with <DS:DE.USMD_USAGE_TYPE>storage and use type</> <ls>1
</> without a data element must be used as <ls>to-entity types</> in at
least two relationships with the relationship type <ls>Leading</> when
the cardinality 1:N is used. This requirement is not fulfilled.

System Response

The data model cannot be saved or activated.

How to fix this error?

Make sure that the entity type is used as the <ls>To-Entity Type</> in
two or more relationships with the relationship type <ls>Leading</>.

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 USMD1063 - Data model &1, entity type &2: Not enough "leading" relationships ?

  The SAP error message USMD1063 typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the data model configuration, specifically related to the relationships defined between entities in the data model.
  
  Cause:
  The error message "Not enough 'leading' relationships" indicates that the system has identified that there are insufficient leading relationships defined for the specified entity type in the data model. Leading relationships are crucial for establishing the hierarchy and navigation paths between different entities in the data model. If these relationships are not properly defined, it can lead to issues in data processing, validation, or display.
  
  Solution:
  To resolve the USMD1063 error, you can take the following steps:
  
  
  Check Data Model Configuration:
  
  Go to the Data Model configuration in the SAP MDG application.
  Verify the relationships defined for the entity type mentioned in the error message.
  Ensure that there are enough leading relationships defined to meet the requirements of the