What to Review Before Launching Payments, Accounts, or User-Generated Features
2 min readWritten by Geo Preston
New payment options, account systems, and user-generated content features are where growth happens — and where new abuse surfaces first. A short structured review before launch catches far more than a long list of features shipped and patched later. Here's what that review should cover.
Who can create what, and how fast
Every new account, listing, or payment method is an opportunity — for a customer, and for someone testing your defenses. Before launch, ask how many accounts, transactions, or listings one person could create in an hour, and whether that volume would look normal or would trip an obvious threshold. If nobody can answer that question, the feature doesn't yet have a concept of "too much, too fast."
What happens at the edges of the happy path
Most abuse doesn't come through the front door — it comes through combinations nobody designed for: a refund issued twice, a promo code applied after checkout, a quantity field that accepts a negative number. Walk the workflow's edge cases deliberately, the same way a QA review would, but ask "what does this let someone get away with" instead of just "does this crash."
Who can see, edit, or approve what
New features often ship with permissions copied from an existing role, or with a temporary "anyone with access can approve this" rule that was never meant to be permanent. Confirm who can view sensitive fields, who can approve high-value actions, and whether that list matches who should be able to.
How disputes and reversals are handled
If the feature touches money, someone will eventually dispute a transaction. Before launch, walk through what happens when a customer says "I didn't authorize this" or "I never received it." If the answer depends on which support agent picks up the ticket, the policy isn't written down yet — it's assumed.
What a bad actor would try first
Spend twenty minutes trying to break the feature the way an opportunistic user would: create duplicate accounts, chain referral bonuses, or submit content designed to slip past review. This isn't a penetration test — it's a structured thought exercise most teams skip because it feels adversarial toward their own product.
How the team will know something went wrong
Decide, before launch, what metric would move if this feature were being abused — and who would notice. A dashboard nobody checks isn't a control. A defined owner watching a specific number for the first few weeks after launch is.
Who owns the decision to pause or roll back
If usage looks wrong in week one, who has the authority to pause the feature, and how quickly can that happen? Deciding this after a problem starts costs time you don't have. Deciding it beforehand costs one conversation.
None of this needs to slow a launch down significantly. Most of these questions take an hour of structured conversation, not a multi-week audit — the goal is making sure someone asked them before customers find the gaps for you.