How To Fix /IWBEP/CM_MGW_RT122 - Navigation property '&1' of data object '&2' is inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 122

• Message text: Navigation property '&1' of data object '&2' is inconsistent

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT122 - Navigation property '&1' of data object '&2' is inconsistent ?

  The SAP error message /IWBEP/CM_MGW_RT122 indicates that there is an inconsistency with a navigation property in the context of an OData service. This error typically arises when the navigation property defined in the data model does not match the expected structure or relationships in the underlying data model.
  Cause:
  
  Inconsistent Data Model: The navigation property defined in the OData service may not correspond correctly to the relationships defined in the underlying database or data model.
  Missing Associations: There may be missing associations between entities in the data model, leading to the navigation property being unable to resolve correctly.
  Incorrect Metadata: The metadata for the OData service may not be correctly defined, leading to mismatches between the expected and actual data structures.
  Data Integrity Issues: There may be issues with the data itself, such as missing foreign key relationships or orphaned records.
  
  Solution:
  
  Check Data Model: Review the data model to ensure that all navigation properties and associations are correctly defined. Ensure that the relationships between entities are properly established.
  Update Metadata: If there are changes in the underlying data model, ensure that the OData service metadata is updated accordingly. This may involve regenerating the service or updating the service definition.
  Validate Data Integrity: Check the underlying data for integrity issues. Ensure that all foreign key relationships are valid and that there are no orphaned records.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for additional error details that may provide more context on the issue.
  Rebuild the Service: If necessary, consider rebuilding the OData service to ensure that all definitions are correctly aligned with the underlying data model.
  
  Related Information:
  
  OData Services: Understanding how OData services work in SAP and how they interact with the underlying data model is crucial for troubleshooting these types of errors.
  SAP Gateway: Familiarize yourself with SAP Gateway concepts, as this is the framework that handles OData services in SAP.
  Transaction Codes: Use transaction codes like /IWFND/MAINT_SERVICE to manage OData services and check their configurations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be specific fixes or recommendations provided by SAP.
  
  By following these steps, you should be able to identify and resolve the inconsistency related to the navigation property in your OData service.