Trouble publishing survey for use with Collector. "Not Nullable"

[RichardCaprio1]

Running into a snag when trying to publish a survey I'll be linking to the Collector app. I've been using the processes found in many previous discussions (Survey123 feature class as a related table , https://community.esri.com/groups/survey123/blog/2016/07/30/understanding-survey123s-custom-url-sche... , and https://community.esri.com/thread/208613-pass-global-id-from-collector-to-g )

When going to publish the survey from Connect, I'm getting an error stating, "The custom feature service submission url is not compatible with this survey (Field parentglobalid in MS4_Outfall_Inspection_Shape is not nullable and must be configured as required.)"

The field, parentglobalid, is my GUID field needed for a relationship class with my asset that I need inspections performed on and is inherently not nullable...

I feel like I'm missing something glaring, but I've been stuck here for the past day or so. Thanks for any help.

[BrandonArmstrong · Accepted solution]

Hi Richard,

Try to make the field which is being referenced 'required' in the XLSForm and attempt to republish.  The error should be due to the fact that Field parentglobalid in MS4_Outfall_Inspection_Shape did not allow for Null values at time of creation.

[RichardCaprio1]

Thanks Brandon, that did the trick.