Use Restrict to Tickets? when only selected tickets should earn affiliate commission. Leave it blank to allow otherwise eligible ticket sales under the normal commission rules.
Go to Event Settings > Payments & Partners > Affiliate Settings. Keep the programme Enabled to edit its rules.
Under Commission Rules, select eligible tickets in Restrict to Tickets?.
Select Save at the top.
What the restriction changes
Referred orders can still be attributed to the affiliate, but each ticket purchase must match the selected tickets to earn commission. Non-matching purchases are excluded from eligible payout totals. Other rules, including the percentage, commission cap and minimum sales, still apply. Product-specific commission overrides set rates; they do not make an excluded ticket eligible.
Apply changes to existing affiliates
New affiliate records copy the event's ticket restrictions. When you change restrictions later, Affiliates > All Affiliates can show Sync to affiliates if existing records differ. Read the confirmation's named fields before proceeding: sync applies those fields to every existing affiliate and can overwrite individual settings. It also rechecks earlier orders whose payouts have not been marked paid. For different individual percentages or product rates, use Actions > Edit Affiliate > Commission; that form does not provide an individual ticket-restriction selector.