Error : can't leave Input file empty
I would like to set up a 'file upload' where you can upload a file, and keep it in a 'formOutput.fileStudentPlanContract' (with fileStudentPlanContract being a contract of a file type).
I can later retrieve it with no problem, however I can't seem to leave the field empty, (as if it was mandatory) as this debug msg is displayed :
Error while validating expected inputs
- Expected input [fileStudentPlanContract] is missing
I found a similar case to mine, but I can't really understand the solution very well, and I wasn't sure if since 2016, there wasn't a simpler solution to my case,
Thank you in advance.