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Using Survey123 with an existing feature service: compatibility with new survey points

Question asked by cfleming@fisheriesireland.ie_IFIgis on Jan 21, 2019
Latest reply on Jan 24, 2019 by cfleming@fisheriesireland.ie_IFIgis

I have created a survey form using an existing feature service in ArcGIS  online as outlined in this following blog post (Working with existing Feature Services in Survey123 for ArcGIS )


My data is a point file of all possible survey locations - some have been surveyed already (i.e. pre-Survey 123), and more are remaining to be surveyed with the help of Survey123! I was reading another post which suggested keeping geopoints from pre-existing data sets as read-only. Ideally I would like to enable this feature of the XLS form and keep the locations non-editable for these pre-existing points. Moreover, each point has a unique ID code which I would also like to keep as a read-only field. When read-only is enabled on the XLS form, this works perfectly in the survey form for both fields. However, there are times where a new (unknown) point may be surveyed in the field, and therefore its location needs to be editable by the field surveyor. In my initial testing for collecting new points in the field I found the 'pulldata' expressions useful for collecting good point locations in the field (Geopoints—Survey123 for ArcGIS | ArcGIS ), and I would like to use this feature for the collection of new (& accurate) data points. 


Most of my survey locations are already known, so it would be very appropriate for my survey to leave the geopoint field as read-only. The only exception is the case of adding new points to the hosted feature service. Does anyone have any suggestions of a workflow which I could implement to get around this?


Thanks in advance!