How To Fix USMD1164 - Entity types must not be further restricted

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 164

• Message text: Entity types must not be further restricted

What causes this issue?

A restriction regarding entity types can only be made for authorizations
USMD_MDAT and USMD_MDATH if the data model is restricted to a single
value.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message USMD1164 - Entity types must not be further restricted ?

  The SAP error message USMD1164, which states "Entity types must not be further restricted," typically occurs in the context of SAP Master Data Governance (MDG) when you are trying to create or modify a data model or entity type that has already been defined with certain restrictions. This error indicates that the entity type you are working with cannot be further restricted beyond what has already been defined in the data model.
  Cause:
  
  Entity Type Restrictions: The entity type you are trying to modify has already been defined with specific attributes and restrictions. Attempting to add additional restrictions or modify existing ones that conflict with the defined structure leads to this error.
  Data Model Configuration: The configuration of the data model may not allow for further restrictions on the entity type due to its design or the relationships with other entity types.
  Inconsistent Definitions: There may be inconsistencies in how the entity types are defined in the data model, leading to conflicts when trying to apply further restrictions.
  
  Solution:
  
  Review Entity Type Definition: Check the definition of the entity type in the data model. Ensure that you are not trying to apply restrictions that are already in place or that conflict with existing definitions.
  Modify Restrictions: If you need to change the restrictions, consider modifying the existing ones rather than adding new ones. This may involve adjusting the data model to accommodate the necessary changes.
  Consult Documentation: Refer to the SAP MDG documentation for guidelines on how to properly define and restrict entity types. This can provide insights into best practices and limitations.
  Check for Dependencies: Ensure that there are no dependencies or relationships with other entity types that may be causing the restriction. Sometimes, changes in one entity type can affect others.
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on your specific configuration and requirements.
  
  Related Information:
  
  SAP MDG Documentation: Review the official SAP documentation for Master Data Governance to understand the principles of data modeling and entity type management.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. This can provide additional insights and solutions from other users.
  Training and Resources: Consider training sessions or resources on SAP MDG to enhance your understanding of data modeling and entity management.
  
  By following these steps, you should be able to address the USMD1164 error and successfully manage your entity types within SAP MDG.