Hi Alessandro,
here you can find a few samples of those custom media type.
As you can see they are all of the form application/*+json.
So if I understand you correctly, this should work?
application/vnd.be.securex.genservices.securityservices.customers.model.webuserv1+json
application/vnd.be.securex.cbservices.referencecodeservice.country.model.countryv1+json
I've attached a screenshot of a small test. As you can see the "Test Results" tab in the HTTP Service Editor turns red but the response body is actually available.
Using an action to prepopulate a form field does not work in this case.
Regards,
Geert
ServiceCallCustomMediaType.png