Most channel skills are about making other companies' salespeople successful with your product. Learn the mechanics of partner programs first, because hiring managers screen hard for them. The strategy work that gets you promoted comes later and builds on those basics.
Managed relationships with channel partners and supported their sales efforts.
Grew partner-sourced revenue from $2.1M to $3.4M across 18 resellers by moving 6 partners onto joint business plans and cutting deal registration disputes by half.
Enough to demo the product and answer a partner rep's first questions. At software companies you'll lean on a partner sales engineer for deep technical work, but partners lose patience fast with a channel manager who can't explain how the product fits their customers.
Deal registration and rules of engagement. You already know pipeline and forecasting, so the gap is understanding how partners get protected and how to referee a dispute you used to be on one side of.
A vendor's own partner or product certification is worth listing if you're applying to that vendor or its competitors, since it shows you know the program from the inside. Generic sales courses carry less weight than a real partner result on your résumé.
Volunteer for anything that touches partners: joint deals with a reseller, a referral program, or a co-marketing event. Even one deal you closed alongside a partner rep gives you a real story about registration, margin and who did what, and that story is what a channel hiring manager wants to hear.