Known bug? Survey123 Connect schema not precisely syncing in ArcGIS Online

[SusanWS_nysm]

Hi,

I have created a survey form in Survey123 Connect that had several "required" fields before it was published. After publishing and collecting data which generated a new feature layer, however, I found that in the field settings in AGOL the settings allow null values. I don't think I would have noticed -- the form works properly and doesn't permit a survey to close without a value in the required fields -- but I also have a Data Interoperability workflow (FME Workbench) in which I have a Writer that uses one of these fields for an upsert feature operation -- but because the field setting is "allow null values" it won't work. 

I've tried republishing the survey and nothing changes. 

Thanks in advance!

[DavidPike · Accepted solution]

It seems to be expect/designed behaviour, and this explanation makes perfect sense.  

https://community.esri.com/t5/arcgis-survey123-questions/required-fields-in-survey-form-still-allow-...

For the feature layer on ArcGIS online, the required question has the setting nullable:"true" by-design, this is because sometimes the required question is used as a relevant question, and when it is not relevant, the required question should be hidden and allowed to submit as null.

[SusanWS_nysm]

That’s great - thank you very much (again 😁)!