How To Fix USMD1598 - Data model &1, relationship &2: One or more From-fields are missing

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 598

• Message text: Data model &1, relationship &2: One or more From-fields are missing

What causes this issue?

Field assignments are incomplete. At least one from-field is missing.

System Response

The data model cannot be saved or activated.

How to fix this error?

Use search help for the from-field in the <LS>Fields of Foreign Key
Relationships</> view in Customizing activity <DS:SIMG.FMDM_USMD001>Edit
Data Model</> and specify the field assignments for all values.

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 USMD1598 - Data model &1, relationship &2: One or more From-fields are missing ?

  The SAP error message USMD1598 indicates that there is an issue with a data model in the context of SAP Master Data Governance (MDG). Specifically, it points out that one or more "From-fields" are missing in a relationship defined in the data model. This can occur when the relationship between entities in the data model is not properly defined or when the necessary fields that should link the entities are not present.
  Cause:
  
  Missing Fields: The fields that are supposed to establish the relationship between the entities are not defined in the data model.
  Incorrect Configuration: The data model may have been incorrectly configured, leading to missing relationships or fields.
  Changes in Data Model: If there have been recent changes to the data model, it is possible that some fields were removed or renamed, leading to this error.
  Transport Issues: If the data model was transported from one system to another, there might have been issues during the transport process that caused some fields to be lost.
  
  Solution:
  
  Check Data Model Configuration: Review the configuration of the data model in the SAP MDG system. Ensure that all necessary fields for the relationships are defined correctly.
  Define Missing Fields: If you identify that certain fields are indeed missing, you will need to add them to the data model. This can typically be done through the MDG customizing settings.
  Validate Relationships: Ensure that all relationships between entities are correctly defined and that the "From-fields" are specified.
  Transport Validation: If the issue arose after a transport, check the transport logs for any errors or warnings that might indicate what went wrong during the transport process.
  Testing: After making changes, test the data model to ensure that the error is resolved and that the relationships function as expected.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  MDG Documentation: Refer to the official SAP Master Data Governance documentation for guidance on configuring data models and relationships.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.