I have a very simple survey. It has several required fields and some of them have an expression in the Relevant column in the XLSform (for simplicity's sake, 1=0 in the Relevant column hides the field).
My survey is based on an existing feature service in our portal, in which the required fields are set to not nullable.
The questions are not in a group or a repeating group. Survey123 version 3.10.323
I publish the survey and it all works as it should except when I send the completed form to our portal. The first time I send it, it gives an error - see screen cap below. The error in the ArcGIS Server Manager is also shown below.
The strange thing is if I go to the Survey123 outbox, edit the form again, don't change anything but just send it, it works the 2nd time around. This behaviour is consistent. As well, the surveys in the Survey123 outbox won't send if you click the Send icon at the bottom of the outbox - it gives the same error as shown above..
Has anyone encountered this problem and do you have a fix or workaround?