How To Fix UD381 - Table & is already assigned to entity type &

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 381

• Message text: Table & is already assigned to entity type &

What causes this issue?

You wish to assign a table to an entity type. However, the table
involved is already assigned to a different entity type. Multiple
assignment is not allowed.

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?

Check the existing and desired assignments and change as required.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UD381 - Table & is already assigned to entity type & ?

  The SAP error message UD381 indicates that a specific table is already assigned to an entity type in the system. This typically occurs during the process of data modeling or when trying to assign a table to an entity type in the context of SAP's data management or data modeling tools, such as SAP HANA or SAP BW.
  Cause:
  
  Duplicate Assignment: The table you are trying to assign is already linked to another entity type. This can happen if the same table is being used in multiple contexts or if there was an attempt to reassign it incorrectly.
  Modeling Errors: There may be an error in the data model where the relationships between tables and entity types are not correctly defined.
  System Configuration: The system may have been configured in a way that restricts the assignment of certain tables to multiple entity types.
  
  Solution:
  
  Check Existing Assignments: Review the current assignments of the table in question. You can do this by navigating to the relevant data model or entity type in the SAP system and checking the relationships.
  Remove Duplicate Assignments: If the table is indeed assigned to another entity type and you need it to be assigned to a different one, you may need to remove the existing assignment first.
  Modify the Data Model: If the table needs to be used in multiple contexts, consider redesigning the data model to avoid conflicts. This may involve creating views or using different tables for different entity types.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on managing entity types and table assignments.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  SAP Data Modeling: Understanding how data models work in SAP can help prevent such issues. Familiarize yourself with the concepts of entity types, tables, and their relationships.
  SAP HANA Studio: If you are using SAP HANA, the HANA Studio provides tools for managing data models and can help visualize existing assignments.
  Transaction Codes: Familiarize yourself with relevant transaction codes that can help you navigate the data model and check assignments (e.g., SE11 for Data Dictionary, SE80 for Object Navigator).
  
  By following these steps, you should be able to identify the cause of the UD381 error and implement a solution to resolve it.