I'm using the network diagram functionality to create a schematic view of an utility network.
To simplify the schema, I've used a reduction junction rule, so I have some reduction edges in my diagram.
I would like to label each reduction edge based on an attribute of the original linear feature class, since I know that each source feature has the same value on a specified field ( this is ensured by using the option "connected edges contraints" when adding the rule) but I don't know if this is possible in some way. I tried to make a join between the reduction edge and the line feature class on the associatedGlobalID/globalID field, but the join does not work.
Does anyone know how can I label these classes?