SaaS Launch Checklist: Money, Accounts, Email, Data and Support
A SaaS launch checklist covers the parts a plain landing page never needs: a billing path you have paid through yourself, signup and password reset that work, transactional email that reaches inboxes, a backup you have restored once, a cap on what free users can cost you, and one inbox for support. Check those six systems first. Enterprise features and certifications can wait until a customer asks.
What makes a SaaS launch different from launching a page?
A SaaS product keeps state about people. It holds their logins, their data and, usually, a payment method, and it promises to be there tomorrow. That changes what a launch can break. A static page that goes down costs you a day of visitors. A subscription product that loses data, double-charges a card or lets one customer see another’s records damages trust that was never yours to spend. The checklist is organised by those systems, not by time, so you can tick one group at a time.
It assumes a small product with one maker or a tiny team and a first handful of customers, not a company with a security review. If your product is still a prototype, the launch a SaaS for free playbook covers where to find first users, and how to build a SaaS covers the earlier work.
Which billing checks must pass before you charge anyone?
- Run a purchase end to end in your payment provider’s test mode, and then a real purchase on your own card in live mode, since live keys and test keys are configured separately and mixing them is a classic launch-day bug.
- Refund your own purchase and confirm the product handles the cancellation, because the refund path is the one you will use first.
- Send each billing event your handler listens for at least twice, so a duplicate delivery does not grant access twice or charge twice.
- Test a declined card and an expired card, and write down what the customer sees; “something went wrong” is not an answer.
- Make cancelling as easy as subscribing, reachable in a couple of clicks from the account page, since a hard cancel produces chargebacks and angry comments.
- State the price, the billing period and what happens at the end of a trial on the page before the pay button.
If you have not settled the price, how to price a micro SaaS gives a method for choosing one without guessing. Free or paid, the page should say which, and for how long.
Do signup and sign-in survive a stranger?
- Create an account with a fresh email and watch the whole first run, since you have not seen your own welcome flow since the day you built it.
- Use password reset on a real inbox. A reset link that expires immediately or lands in spam locks out your first customers.
- Name the one action that counts as getting value and make the product lead there. The time to value and activation rate entries explain how to measure it.
- Test one customer against another. Sign in as user A, change the address in the URL to one of user B’s records, and confirm it is refused. Access mistakes between accounts are among the most damaging bugs a launch can expose.
- Rate-limit sign-in and signup so one script cannot fill your database with fake accounts on day one.
What should be true about email and data?
Product email is part of the product: confirmations, receipts and resets arrive from your domain, and a message that lands in spam is a feature that does not work. Set up SPF and DKIM for the domain you send from and send yourself test messages to at least two different providers. The launch email checklist lists the sender requirements Gmail publishes.
- Take a backup and restore it into a scratch database, because a backup you have never restored is a hope, not a backup.
- Provide a way for a customer to export their data and to delete their account; many places expect both, and you will be asked.
- Publish a privacy page that says what you store, where it is processed and who your service providers are, in plain words.
- Publish terms that match what you actually do. Keep them short; copy that you do not follow is worse than no copy.
- Keep secrets out of the browser: check that no private key appears in the page source or in a public repository.
How do you stop a free launch becoming a bill or an outage?
The two launch-week surprises for a small SaaS are cost and downtime. Both are cheap to prevent and expensive to meet unprepared. Work out what one free user costs you in compute, storage and any paid API they trigger, then decide a hard cap per user and per day. A cap that blocks the twelfth request is a design choice; an uncapped endpoint that a script discovers is a bill.
- Set a spending alert with every provider you pay by usage, so the first warning is an email and not a statement.
- Add error tracking and an uptime check that message your phone, so you hear about an outage before a customer does.
- Rehearse a rollback. Know how to return to the previous version in one step, and try it on a quiet day.
- Tell people about problems. A one-line status note on your site beats silence while you fix something.
- Run the database migration on a copy first. A migration that locks a table on launch day is a self-inflicted outage.
What is the order of work over the last two weeks?
| When | Do this | Why then |
|---|---|---|
| 14 days before | Billing in test and live mode; backup restore; access test between two accounts | These are the slow, risky jobs; leave time to fix what they find |
| 7 days before | Email authentication, password reset, cancellation path, cost caps | They need real inboxes and real DNS changes, which take time to settle |
| 1 day before | Smoke test as a stranger; freeze deploys; alerts on your phone | Nothing new should change after this |
| Launch day | Stay reachable; read the error log hourly; reply to every comment | Early users forgive bugs you answer for |
| 7 days after | Write to people who signed up but did not reach first value | Their reason is the cheapest product research you will get |
| 14 days after | Review cost per free user and the support questions you got | Both decide whether the free tier and the page need changing |
1. Open [URL] in a private window on a phone. 2. Click the main call to action. Sign up with an email I have never used here. 3. Open the welcome email. Click its link. Note anything odd. 4. Reach the first useful result. Time it: ______ minutes. 5. Reset the password. Sign in with the new one. 6. Subscribe (live mode, my own card). Check the receipt arrives. 7. Cancel. Check access ends or continues as the page promised. 8. Refund the payment. Check the dashboard and my email. 9. Delete the account. Check it is gone. 10. Open the status or support link. Send a message. Confirm I receive it.
What can wait, and which mistakes cost the most?
- Wait on certifications and single sign-on until a paying customer asks for them; none of them helps a first hundred users.
- Wait on annual plans, several currencies and a referral scheme. Each is a support burden before it is a growth tool.
- Wait on an in-app chat widget. An email address you answer in hours is honest enough.
- Mistake: no cap on a free tier that calls a paid API. One enthusiastic visitor, or one script, runs up your cost.
- Mistake: launching with only test-mode billing proven. Live mode is a different configuration.
- Mistake: no human reachable. Early customers expect an answer; a reply in a day sets the tone for the relationship.
Pick the places to announce after the systems pass: where to launch SaaS products lists options with their catches, and you can launch your product free on this board with no account and no queue. If you are still looking for what to build, browse the ideas board.
Frequently asked questions
What do I need before I charge for a SaaS?
A purchase you have completed yourself in live mode, a cancellation path that works, a refund you have tested, a page that states price and billing period, and a privacy page. Also test a declined card and a duplicate billing event. If any of those is untried, launch free or in beta first.
Should a SaaS launch with a free plan?
Only if you have worked out what one free user costs and capped it. A free plan helps people try the product, but one that calls a paid service without limits can turn early interest into a bill. Set per-user and per-day caps, and an alert on spending, before you announce.
Do I need a status page to launch a SaaS?
Not a full one. You need a quick way to tell customers when something is wrong, even a single line on your site or a pinned post, plus an uptime check that alerts you first. A dedicated status page can follow once you have customers who depend on the product every day.
How do I test that customers cannot see each other’s data?
Create two accounts, sign in as the first, and try to open the second’s records by changing the identifier in the address or in a request. Every attempt should be refused. Repeat for each page and endpoint that shows customer data, and run the check again after any change to your access rules.
Written by Post your build ideas with AI assistance and edited for this site. Where a page names another product, the facts came from that product’s own pages on the date shown above; terms change, so check them before you rely on them. About the publisher.