Know what has actually been checked.
Understand GroupNN offer labels, checkout-test limits, expiry handling and how user reports differ from editorial verification.
A source is the starting point
We record the retailer, offer title, code if one exists, market, conditions and source URL. Preferred sources are the merchant’s own promotion or help pages and authorised programme materials. A copied code without a credible source is not enough to establish a published offer.
An official-source label describes provenance. The retailer may still restrict eligibility by account, country, product, membership or order value. The listing update time indicates when our stored record changed; it is not a claim that the retailer revalidated the code at that moment.
How to read each status
| Visible label | What it establishes | What it cannot establish |
|---|---|---|
| Official offer | An official or authorised source is recorded. | That every account or cart qualifies. |
| Not yet tested | A source exists but no successful checkout test is recorded. | A reliable success rate. |
| Tested in stated conditions | A test succeeded under the market and cart conditions shown. | A universal result or future availability. |
| Failed / blocked test | The recorded attempt failed or could not be completed. | That the offer is invalid for all users. |
What a checkout test needs
A useful test records its time in UTC, market, account eligibility, cart contents and result. Product variants and order value matter. Evidence should explain the applied discount or rejection without exposing a shopper’s identity or payment data.
We do not turn a source-page visit into a successful checkout test. Where a test record exists, its result and stated cart conditions appear with the offer. A historical success may become stale as merchant rules change. You must still confirm the final total before paying.
Automated checkout testing is not connected. No claim of continuous scanning or automatic verification should be inferred from the directory.
User reports are a separate signal
Worked for me and Didn’t work reports describe an individual experience. A shopper can misunderstand a condition, use a different country site or omit details. We use reports to investigate; they do not automatically add a verification badge.
We limit repeat reports for the same offer using a keyed technical fingerprint. We do not publish invented user counts or convert a small, biased set of reports into a universal success percentage.
Expiry, corrections and unknown information
Offers with a recorded expiry are removed from current results after that time. If the source does not supply an expiry, the page states that it is unknown. Missing shipping, tax or eligibility information remains unknown rather than being treated as zero or unrestricted.
Send changed terms or broken sources to our editorial team. A useful correction identifies the offer, the changed condition and the merchant source. We update the record or remove it from current results when it should no longer be published.
Two different types of offer
A student programme can require the merchant to issue a personal code after checking eligibility. GroupNN cannot replace that verification step. A first-order code may be publicly displayed but limited to new customers and qualifying items. Both can come from official sources while still needing different checkout checks.
View Nike’s sourced programme listing or view iHerb’s first-order listing, then read the linked merchant terms for the current rules.