Pay a different commission depending on the billing cycle, such as 10% on monthly plans and a fixed $100 on yearly plans. Create two flows, each with an Interval condition.
Go to Flows and create a flow with the New payment trigger for your monthly plans.
In step 3, set the monthly rate, for example 10% Percentage.
In step 4, add the condition Interval equals Month, then create the flow.
Create a second flow for yearly plans. Set the yearly rate, for example $100 Fixed, and add the condition Interval equals Year.
A customer who pays monthly now earns the partner 10% of each payment. A customer who pays yearly earns them $100.
Good to know
To spread a yearly commission over several months instead, use the Prorate yearly payments option in step 3 of the yearly flow.
Make sure no other active flow matches the same payments, or the partner earns both.