https://community.esri.com/t5/trace-network-questions/new-edge-not-connected-in-trace-network/m-p/1650299#M186 <P>OK, I figured it out. The tutorial (and my first attempt) was based on a "Simple edge" Trace Network which means that a line feature had connectivity only at its endpoints. So when I added a new line snapping on a line vertex or on its edge, it was not connected. I just needed to create my Trace Network with the Connectivity Policy set to "Complex edge". Should always read the documentation <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span></P> Sun, 14 Sep 2025 23:18:21 GMT clc 2025-09-14T23:18:21Z https://community.esri.com/t5/trace-network-questions/new-edge-not-connected-in-trace-network/m-p/1650253#M185 <P>I am working on creating a Trace Network from scratch for a small water network and I have a problem with the results of running a Trace of type Connected. My understanding was that everything should be highlighted when putting a starting point anywhere on an edge. I have practiced with the very good tutorial: <A href="https://learn.arcgis.com/en/projects/trace-a-stream-network/#create-a-trace-network" target="_blank">https://learn.arcgis.com/en/projects/trace-a-stream-network/#create-a-trace-network</A><BR />and that was the case. So I decided to add one more "stream" to their example, I run "Validate Network Topology" and it worked perfectly removing the dirty area and adding 2 more junctions. But when I run a Trace of type Connected, this new edge is still not connected. If I put the starting point on the new edge, it highlight only this edge, if I put it everywhere else, just as before it highlights everything but this edge, see below</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Trace.png" style="width: 999px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/140347i3359587A2FB6DC77/image-size/large?v=v2&amp;px=999" role="button" title="Trace.png" alt="Trace.png" /></span>What do I miss when creating this new stream? Thanks for helping me understand this.</P> Sat, 13 Sep 2025 23:12:06 GMT https://community.esri.com/t5/trace-network-questions/new-edge-not-connected-in-trace-network/m-p/1650253#M185 clc 2025-09-13T23:12:06Z https://community.esri.com/t5/trace-network-questions/new-edge-not-connected-in-trace-network/m-p/1650299#M186 <P>OK, I figured it out. The tutorial (and my first attempt) was based on a "Simple edge" Trace Network which means that a line feature had connectivity only at its endpoints. So when I added a new line snapping on a line vertex or on its edge, it was not connected. I just needed to create my Trace Network with the Connectivity Policy set to "Complex edge". Should always read the documentation <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span></P> Sun, 14 Sep 2025 23:18:21 GMT https://community.esri.com/t5/trace-network-questions/new-edge-not-connected-in-trace-network/m-p/1650299#M186 clc 2025-09-14T23:18:21Z