Referral partner commission on product bundles that include subscriptions

I’m looking for help setting referral partner commissions on a product bundle that includes one-time products and a subscription. I have found articles on creating product bundles and other articles about the basics of creating referral program offers. However, I cannot find any help articles on the nuances of setting affiliate commissions on a one-time special offer that also includes a subscription.

A couple times a year we offer special product bundles, and one of our marketing account managers is the one responsible for setting up the commissions on these special offers. We have had commission issues every single time and had to manually correct dozens and dozens of orders. I’m trying to find some best practices resources to improve our process