Define the offer, not just the interval
Be explicit about what the customer receives, how often they pay and what happens at renewal. A one-year licence sold once is different from an automatically renewing subscription. Product content, pricing and checkout should all describe the same arrangement.
Plan for more than successful payments
Decide how you will handle failed renewals, cancellations and changes to the subscription. Agree the timing of reminders and any grace period before launch. Verify the behaviour supported by your connected payment service rather than assuming every provider offers the same controls.
Connect billing to fulfilment
For a digital subscription, the recurring payment and the right to use the product are related but distinct. Check whether renewal extends an existing entitlement or delivers a new licence. Make the outcome visible in the order and customer account, and confirm what support can do when a renewal needs attention.
Measure the whole relationship
New subscriptions tell only part of the story. Review upcoming renewals, failed payments, cancellations and support demand alongside paid orders. Use those signals to improve the offer and customer communication, rather than judging the subscription solely on its first transaction.