Hi ​@joe_cast I think the PointOnLineOverlayer would work well for you here:

PointOnLineOverlayer

I hope this helps. Good Luck!

Thanks, Ill try that. The notes say it splits the line feature which I dont want, so this may not work for this application. 

Strange, the NeighborFinder should just insert an extra vertex on the line.

Might consider the AnchoredSnapper with the Segment snapping option. Anchor would be points, Candidates would be lines.

Ah yes. You could use a LineCombiner or FeatureJoiner after that point. The assembled lines should keep the vertex.

And as ​@geomancer points out your original method should be working. Maybe with that advice you will get the vertex on the line. Good Luck!

Hi ​@joe_cast and ​@geomancer The NeighborFinder only inserts one vertex from the closest candidate.  FYI there’s an enhancement request to insert all points within tolerance, FMEENGINE-15502.  The AnchoredSnapper does the same without having to reconnect the lines.

Thanks for the suggestions all. The neighbor finder was adding a vertex after all, but I had to send it through a feature writer to see them in arcgis. Good learning opp for me :)