Snapped features not creating vertex when appending to utility network

[shildebrand]

I have a dataset of fittings (outside the utility network) that appear to be snapped to gravity main lines that were created from the snap geoprocessing tool.  When I append these features into structure junctions (fitting subtype), no vertex is created on the gravity main.  If you manually create a fitting (structure junction) on the gravity main, a vertex is created on the line.  I'm thinking there is some type of utility network rule that needs to be modified in order to get this to work?  Any guidance would be greatly appreciated!

[gis_KIWI4]

@shildebrand  - are you trying to snap the domain network to structure network?

As far as I am aware the snapping only works if there is a rule for it and that you cannot create a Junction Edge Rule between Domain and Structure Network. 

[MikeMillerGIS]

This is as designed.  The append process does not trigger an edit to the lines(this would make append very slow).

You need to insert a vertex on the lines.  Tools like integrate can help.

[shildebrand]

That tool is very interesting and it does work on a small sample of data.  Maybe you can point me in the direction of best practices when loading in data to an existing utility network so that it participates in the topology that already exists in the network?

[gis_KIWI4]

@shildebrand - We use FME to bulk-add data into Utility Network. We have found this to be the easiest way.
Tools like integrate didn't work for us as they modified the line geometry. 

The other way is this - https://learn.arcgis.com/en/projects/load-data-into-a-utility-network/#load-your-data-into-the-utili...
This involves loading data into the asset package and deploying Utility Network.

The last option I can think of (but haven't tried) is using arcpy to manipulate the geometry.