Thank you so much! This got me pointed in the correct direction. There’s a condition type “The specified call context field is equal to the specified expression” that I was able to create using the information you provided here, that results in my BPM only firing on the Job Receipt to Inventory form.
(For this particular form, I’m currently only concerned about the Classic UI; we aren’t using Kinetic web and haven’t converted this form to Kinetic UI, yet.)
If you’re going to be at Insights this year, I owe you a drink (or something).