How we test
How every workflow is tested before release, how every install is proven on your own orders before it acts, and what each workflow covers today.
The short version
The three workflows in the Peak-Proof Perfume Program passed 131 of 131 automated checks and 61 of 61 unit tests, as of October 7, 2026. On top of that, every install starts with a dry run on your past orders and a shadow period on live ones, and our three written promises cover the parts we control.
What the tests cover
| What was tested | Result |
|---|---|
| The Hazmat Box Check, the Order-Status Responder and the Sell-Out Early Warning, as one package | 131 of 131 automated checks and 61 of 61 unit tests passed, as of October 7, 2026 |
| The carrier rules engine: UPS and FedEx rules, and every USPS flash point band, being added to the Box Check | 70 of 70 tests passed |
| The install kit that connects a store: Shopify’s signature checked on every message, repeats ignored, access tokens kept out of every log | 279 automated checks passed |
Automated checks can’t show everything a particular store will do, which is why every install also goes through the steps below. Want the details? Ask on your review call and we’ll walk you through the test results.
How every install is proven before it acts
- A dry run on your past orders. Before anything touches your store, the Box Check replays up to 60 days of your past orders and logs what it would have done, with no changes made. We go through the results with you.
- Shadow mode on live orders. For a few days, each workflow watches new orders and logs what it would do, without acting.
- A forced failure. We break one workflow on purpose to prove the alert reaches us, naming your store, the workflow and what failed.
- Then it goes live, holding real orders or sending replies you approve. Live means acting on real orders, and only that counts toward our install promise.
- Every Monday after, your digest shows every order checked and held, every reply sent and every stock alert, so you can see it working.
What each workflow covers today
- The Box Check checks three USPS rules: ground only, no foreign or military addresses, and no more than 1 pint in a box. Its UPS and FedEx rules have passed testing and are being added.
- The Order-Status Responder works with Gmail and Google Workspace inboxes. Other inboxes are on our roadmap.
- The Box Check doesn’t buy labels, declare hazmat or mark boxes. Your label tool and your packers still do that.
Where the rules come from
Every rule the Box Check applies comes from the carrier’s own documents, mainly USPS Publication 52, and we recheck them whenever USPS publishes a change. When a rule or a fee changes, we update it once for every client and tell you what changed. Our guides start from the same official sources.