POST to https://platform.adobe.io/data/foundation/conversion/mappingSets/preview returns a 404

[Stewart_Schilling]

POSTing to the mappingSets/preview endpoint as described here https://developer.adobe.com/experience-platform-apis/references/data-prep/#operation/previewMappingS...

and here https://experienceleague.adobe.com/docs/experience-platform/data-prep/api/mapping-set.html?lang=en#p...

returns a 404 response and the following response body: 

Does this endpoint really exist?

[Stewart_Schilling · Accepted solution]

Perhaps that endpoint was down at the time I was hitting it.  I am now getting a more reasonable response code.