Correcting Point Data from Survey123 with GNSS coordinates

Question

I am fairly new to Survey123. I have a series of data points that were collected during fieldwork. We also have coordinates for those same points that were collected with external GNSS equipment.

Does anyone have any idea how I can  "fix" my Survey123 points with the more accurate GNSS coordinates?

I do plan to keep using the survey to collect more point data in the future. So I would like these corrections to be reflected within Survey123.

Thanks in advance!

AlmaA · Answer

Update for anyone who comes across this issue and is inept at Python like me (working to change this!)...

You can change the geometry of your Survey123 points by going to that FeatureLayer in your ArcGIS Online and then clicking on Update Data > Append Data to Layer.  See Append Data to Layers here for more info

In my case, I had an excel with a matching field (Object ID) as my feature layer, and lat/long coordinates (cannot UTM!)

Check the box for Update Existing Features, select the field(s) you want to match, and check the box for Update geometry for existing features.

AlmaA · Answer

One more question... do you know if UTM coordinates will work or should I first convert to lat/long?

ZacharySutherby · Answer

Hello @AlmaA,

Correct the way the update_geometry script is currently written it assumes original_item and fixed_item are items in your content. That doesn't necessarily have to be the case if you have the GNSS coordinates as attribute fields in your services' table you can just make a connection to that layer pull the coordinates from the attributes then update the geometry with those values. It just happened in the scenario where that script was written there was a second feature service that had the correct geometry.