I have a feature service on AGOL with a related table used for asset inspections. The parent layer has a GlobalID field that is related to the table through a GUID field. For each new observation (record) in the related table, I want to grab a Site_ID field from the parent layer to fill the Site_Number field in the related table. This was pretty straightforward to do using the field Maps Designer and calculated expressions (I used this tutorial: https://www.youtube.com/watch?v=TbDY0IpaDoI).
However I have also configured pop-ups for the features that link to a survey I created in Survey123 Connect. Everything works fine in here, with the GUID field being automatically filled in the related table using the GlobalID in the parent layer. the issue is that the Site_Number field isn't being filled. My understanding is the field maps designer expression I wrote does NOT work for records entered into the related table via the Survey. Is there an expression I can write in the Survey123 Connect xls that will pull the Site_ID from the parent feature and populate it in the Site_Number feature of the related record?
Thank you