Hi Randall,
Thank you for sharing; it seems a Mendix bug to me, as you configured everything well.
You could try loading a Swagger contract in Mendix 10.21:
Otherwise, I would switch back to the "Call REST" activity and split the export mapping, call and import mapping in 3 separate activities in your microflow to apply proper debugging.
Good luck!
Hi Randall,
First, store the response in the Import Mapping. After that, the response will be available as an Import Mapping NPE object. You can then store this NPE response in a persistable entity.