There are multiple ways to capture points, lines, and areas in Survey123. Capture points by tapping the map, using your current location, or by searching for a location by name or coordinates. Draw lines and areas as a sketch, or vertex by vertex.
Geosearch and geocode
Map questions include geosearch functionality, allowing you to search for an address or point of interest and have the map zoom to and place the marker at this location. To search, type the address or location in the text box at the top of the screen and select the correct result from the autocomplete results. The map zooms to the location.
Geocoding (return coordinates from a supplied street address) can be used to capture geometry without the use of a map question. An address question allows entry of a street address into a text question and will generate coordinates for the survey record.
Capture points
You can capture points by tapping the map, by tapping the Find my location button 
, or by searching for a location or map coordinate.
On desktop and tablet devices, pan the map to a location and tap the map to capture the point. On smartphone devices, pan the map to a location and tap the Pin location button 
or tap the map to capture the point.
Use the drop-down list to choose a locator from which to perform your geosearch. To search for map coordinates, enter them directly in the individual coordinate fields below the map. You can switch between degrees, MGRS, and UTM by tapping the location coordinate system button beside the coordinate fields.
Capture lines and areas
Lines and areas have two capture methods, sketch and vertex. The survey author defines which method is used by a survey.
Sketch
The sketch method captures the
geometry in a single motion, with the capture completing once the
user has stopped drawing this single line. To begin capturing
sketch geometry, tap the Sketch button 
and begin drawing the shape on the map. When you finish sketching the geometry, stop interacting with the map. The
geometry is then complete, with the geoshape connecting the
beginning and end of the shape if necessary. The length of a geotrace, or the area and perimeter of a geoshape, is displayed
below the map.
The sketch method also provides a smart shape
option, which attempts to simplify the sketched geometry into
an ellipse, rectangle, or triangle. To use smart sketching, tap
the Smart Shapes button 
and begin drawing the shape on the map. If the sketch is recognizable
as an ellipse, rectangle, or triangle, the app automatically
converts it. If the sketch doesn't resemble one of these shapes, no
geometry is drawn.
Vertex
The vertex method allows more precise
geometric capture of a line or shape by placing vertices
that connect together. To begin capturing vertex geometry, tap
the Vertex button 
and tap the map to
place the first vertex. You can place more vertices by tapping the map again.
On smartphone devices only, you can tap the Find my location button to center the map on your current location, and then tap the Capture Vertex at Crosshair button 
to capture a vertex at your current location.
If you place a vertex at the wrong position, tap Undo 
or Redo 
to undo or redo the last change. You can also tap Reset 
(remove all changes), Cancel 
(remove all changes and end the edit session), or Finish 
(keep all changes and end the edit session).