How To Fix MDG_DT_UI019 - Entity &1 does not allow hierarchies to be defined

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_DT_UI - Messages related to the Configuration Workbench UI

• Message number: 019

• Message text: Entity &1 does not allow hierarchies to be defined

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_DT_UI019 - Entity &1 does not allow hierarchies to be defined ?

  The SAP error message MDG_DT_UI019 indicates that the entity you are trying to work with does not support the definition of hierarchies. This error typically arises in the context of Master Data Governance (MDG) when you attempt to create or manage hierarchical structures for a specific entity type that is not configured to allow such structures.
  Cause:
  
  Entity Configuration: The entity in question is not configured to support hierarchies. In SAP MDG, certain entities are designed to be flat and do not have the capability to define parent-child relationships.
  Data Model Limitations: The data model for the specific entity may not include hierarchy attributes or settings that enable hierarchical relationships.
  Incorrect Usage: You may be trying to apply hierarchical features to an entity that is not intended for that purpose.
  
  Solution:
  
  Check Entity Configuration: Review the configuration of the entity in the MDG data model. Ensure that the entity is intended to support hierarchies. This can be done in the MDG customizing settings.
  Modify Data Model: If you need the entity to support hierarchies, you may need to modify the data model to include hierarchy attributes. This typically involves:
  
  Adding a parent-child relationship field.
  Configuring the entity to allow hierarchical data.
  
  
  Consult Documentation: Refer to the SAP MDG documentation for the specific entity type to understand its capabilities and limitations regarding hierarchies.
  Use Alternative Approaches: If the entity cannot be modified to support hierarchies, consider using alternative methods to represent the data, such as using flat structures or different entities that do support hierarchies.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  MDG Customizing: Familiarize yourself with the MDG customizing options available in transaction codes like MDGIMG or SPRO to adjust the data model settings.
  Community Forums: Engage with SAP community forums or support channels for additional help and shared experiences from other users who may have encountered similar issues.
  
  By following these steps, you should be able to address the MDG_DT_UI019 error and configure your entities appropriately for your business needs.