Which actions do you perform to use the EDMX schema?

Use the ... tag as a representation of the relationship between entity types.

Use ComplexType and EdmSimpleType as part of the ... tag.

Define the structure of the payload that the Integration API will support for both inbound and outbound requests.

Update the EDMX schema by downloading it, changing it, and re-uploading it within the SAP Commerce Backoffice.

Use odata2webservices to get the EDMX schema for the integration object.