Message type: E = Error
Message class: /IWBEP/CM_MGW_RT -
Message number: 178
Message text: &1 is not a valid On Delete Action for association &2
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The SAP error message /IWBEP/CM_MGW_RT178 indicates that there is an issue with the "On Delete Action" specified for an association in your OData service. This error typically arises when the action defined for deleting an entity does not match the expected values or is not valid for the specified association.
Cause: Invalid On Delete Action: The error suggests that the action specified for the deletion of an entity is not valid. This could be due to: A mismatch between the defined action in the OData model and the actual implementation. The action being set to a value that is not supported (e.g., trying to set it to "Cascade" when it should be "Restrict"). The association itself may not support the specified delete action. Model
Configuration Issues: There may be issues in the way the OData model is configured, particularly in the metadata definition of the associations. Inconsistent Data: If the data in the database does not conform
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