Hi Deepak,Is configuration exists in publish machine? Are you using any authentication? if yes, then please re-enter the credentials

Hi Phil and Venkat,NPE is occurring due to missing of properties in Content model definitions (line no. 825) in Pega API Swagger.I have logged bug in product for fixing this use case and for now there is workaround. Open the swagger fileFind Content definition (available at line no 825 in yaml file)...

Hi Darren,Yes, Currently its very difficult to track if form submission or invoke service is failing and bug is logged for propagating error message from FDM to Forms and display in UI

Above mentioned use cases is already document, please check  AEM 6.0 Forms Help | Dynamically populating drop-down lists

>> On different lines though as you had mentioned , if the approach of swagger file is taken it would give super authors power to use it in forms and invoke it which is nice.Data Integration support both approach i.e. either provide the URL where swagger file is hosted or you just upload the swagger...