RE: My Custom Form for Leads Will Not Display
Andy,
Thanks very much for going the extra mile on this with me. I had an opportunity to do a screen share with an expert connected to one of the commercial apps we are using in our Dynamics 365 environment with Tamarac CRM (plug: it’s called D365 Checklists and is very handy). Because a picture is worth a thousand words, he very quickly uncovered the source of my problem. (Don’t quote me on the lingo; still coming up to speed on that.) Here’s what did the trick:
(1) Went to the view of all the apps in our Power Apps environment:

(2) Clicked on the three dots, a menu option “Open in App Designer” is presented. When you click on that, all of the entities “included” in the model are displayed. I scrolled down to Leads, and clicked the Forms box, and there is my orphan form:

This picture shows after I checked. When I first entered, it was not checked. That was the problem. Somehow my form was not “included” in the Power Apps app. I think you sensed this when you took note of the form not appearing even in the drop down.
Now I can move forward. I had to deactivate the main Lead form to get Lead Custom to come up first (even though it was on top in form order list all along). So that’s a loose end, but not a big deal, I think.
Thanks for your ideas about what was going on. I learned a lot from that along the way.
-Griff