How To Fix UD377 - Entity type &: Table & assigned more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 377

• Message text: Entity type &: Table & assigned more than once

What causes this issue?

You have assigned a table several times. Either the table occurs
in the assigned table or view and in the other assigned tables or you
have entered the table several times in the other assigned tables.

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?

Ensure uniqueness in the assignment of the table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UD377 - Entity type &: Table & assigned more than once ?

  The SAP error message UD377 indicates that an entity type (usually a data structure or table) has been assigned more than once in a specific context, which is not allowed. This typically occurs in the context of data modeling or when defining data structures in SAP systems, particularly in the context of ABAP Dictionary or when working with CDS views.
  Cause:
  
  
  Duplicate Assignments: The most common cause of this error is that the same entity type or table has been assigned multiple times in a data model or configuration. This can happen if you are trying to create associations or relationships between entities and mistakenly reference the same entity more than once.
  
  
  Incorrect Data Model Design: The data model may not be designed correctly, leading to redundancy in entity assignments.
  
  
  Configuration Errors: There may be errors in the configuration settings or in the way the data model is set up, leading to this duplication.
  
  
  Solution:
  
  
  Review Assignments: Check the data model or configuration where the error is occurring. Look for instances where the same entity type or table is assigned more than once. Remove the duplicate assignments.
  
  
  Refactor Data Model: If the design of the data model is causing the issue, consider refactoring it to eliminate redundancy. Ensure that each entity type is only assigned once in the context where it is being used.
  
  
  Check Associations: If you are working with CDS views or similar constructs, ensure that the associations are correctly defined and that you are not inadvertently creating multiple references to the same entity.
  
  
  Consult Documentation: Refer to SAP documentation or guidelines related to the specific context (e.g., ABAP Dictionary, CDS views) to ensure that you are following best practices for entity assignments.
  
  
  Testing: After making changes, test the data model or configuration to ensure that the error is resolved and that the system behaves as expected.
  
  
  Related Information:
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  
  
  Community Forums: SAP Community and other forums can be helpful to see if other users have encountered the same issue and what solutions they have found.
  
  
  Documentation: Review the official SAP documentation for the specific module or technology you are working with (e.g., ABAP, CDS) for guidelines on entity assignments and data modeling.
  
  
  By following these steps, you should be able to identify the cause of the UD377 error and implement a solution to resolve it.