I've got a workflow that I want to trigger from a widget, so I'm trying my hand at App Builder. But I'm stuck!
I can't get my variables/properties/json/something working correctly. Anybody here have experience with this? Or a better idea on how to trigger? Ideally, a user selects an MO in PMS100, the context fills the fields in the widget, and the user hits a PRINT button.

This is my error:
message: Http failure response for Read more... https://mingle-ionapi.inforcloudsuite.com/TENANT_ID/IONSERVICES/process/application/v1/workflow/start?logicalId=lid%3A%2F%2Finfor.m3.m3&ManufacturingNo=12345&UserID=ME: 400 OK,
error: Code:INVALID_INPUT, CorrelationId:b439663f-4aed-4c8a-9464-9a6c505996c9, Variable name required Show less...