Definition
Subscription expansion includes upgrades, seat increases, add-ons or plan changes that raise recurring revenue after the original purchase. A program may include or exclude this expansion from affiliate commission.
B2B SaaS context
Expansion can be a major part of SaaS lifetime value, especially for team-based products. Rewarding it can motivate high-quality partners, but may overpay when expansion is driven entirely by customer success.
Operator note
Decide whether expansion is commissionable, for how long, and whether the partner must remain active or involved to share in the upside.