Hi Sean, here's how we do that:
- Add ¢er=<lat>,<long> to the end of the link that opens Survey123 (ex: ¢er=40.3798956137812,-122.98043757805).
- On the geopoint question in your survey's XLSform, set required=yes, readonly=yes, and default=null.
You'll need to use an Arcade expression to get the lat-long values. If your Field Maps point data happens to be in 4326 (WGS 84), you can just add
"¢er=" + Geometry($feature).y + ',' + Geometry($feature).x
to the expression that builds your link (or if you happen to already have lat/long values elsewhere in the table, you can just use those, of course).
If your Field Maps point data is in another projection, it gets a bit trickier because you have to convert to lat/long. Let me know if this is the case and I'll see if I can help you convert those values in your popup.