Testing for Product Managers

The problem

You find out about broken flows the same way your users do: a support ticket, a drop in a funnel, a Slack message from someone in sales. By then it's been broken for a day, or a week. Engineering says the release was tested; QA is stretched; and you have no independent way to check the state of the flows your roadmap depends on.

Why the usual approach falls short

• "Is it tested?" is a secondhand answer. You're relying on someone else's summary of coverage you can't see.
• Scripted test suites only cover what someone scripted — and PMs rarely know what's in them.
• Manual QA is a queue. The check you want often happens after the release you wanted it for.

How Manta fits

Point Manta at staging or production and it explores your product the way a user would, then reports what's broken — each finding with a screenshot and the steps to reproduce it. You can run it yourself; you don't need engineering to do it for you.

For the flows your roadmap actually rides on — activation, the core loop, upgrade, invite-a-teammate — describe each one in plain English and Manta checks it on every release. When something regresses, you see it in plain terms with a screenshot, before a user does.

The navigation map also gives you something useful on its own: a picture of every path through the product, which is a good reference when you're scoping changes.

What it doesn't do is tell you whether a feature is right — that's validation, and it still needs users and judgement. Manta covers "does it work," not "should it exist."

What your first run looks like

1. Get a staging URL and a test account from your team.
2. Start a run and watch it explore.
3. Review the findings; pick the 3–5 flows you never want broken and turn them into plain-English checks.

Where it fits

Engineering keeps their tests; QA keeps their exploratory work. You get an independent, running answer to "what's the state of the critical flows right now" — see testing for QA teams and for engineering managers for how it looks from their side.