A valid lead is a submitted lead that passes all of the advertiser's checks and therefore qualifies for payment. The checks typically confirm that the lead is unique (not a duplicate of an existing contact), reachable (a working email or phone), in an allowed GEO, complete and plausibly real (not obviously fake or auto-generated data), and free of fraud indicators.
Definition
A valid lead is a submitted lead that passes all of the advertiser's checks and therefore qualifies for payment. The checks typically confirm that the lead is unique (not a duplicate of an existing contact), reachable (a working email or phone), in an allowed GEO, complete and plausibly real (not obviously fake or auto-generated data), and free of fraud indicators.
The valid-lead rate — valid leads divided by total submitted leads — is what turns a headline per-lead payout into the affiliate's effective earnings.
Validation runs at two levels. Automatic validation applies format checks, duplicate detection, syntax and deliverability checks on the contact, and blocklist matching, and it happens in real time or in a short batch.
Manual validation, used in call-centre verticals and for higher-value leads, adds a human step: someone phones the lead, confirms interest and details, and marks it accepted or rejected. The deeper the validation, the lower the valid rate but the higher the per-lead payout.
In context
A gap between submitted and valid leads points to a problem upstream in the traffic, not usually at the advertiser. Common causes are a prelander that over-promises and attracts curious clickers with no real intent, targeting that is too broad or leaking out of GEO, an incentive that draws reward-seekers, or a form that is too easy to submit with junk data.
A sudden drop in the valid rate is a leading indicator that the traffic mix or the funnel has changed, and it deserves investigation before the next scaling step.
Affiliates protect themselves by agreeing the validation rules, the rejection reasons and the dispute window in writing before scaling a pay-per-lead offer. They reconcile valid-lead counts against the advertiser's report each payment cycle, and they treat an unexplained decline in the valid rate the same way they would treat a hidden payout cut, because economically it is one.
An advertiser that tightens validation criteria mid-campaign without notice is reducing the effective payout retroactively.
Worked example
Of 1,000 submitted leads on a call-centre offer, the advertiser marks 780 valid after phone verification. At $6 per valid lead the affiliate earns $4,680, an effective $4.68 per raw lead.
When the valid rate later falls to 68%, the affiliate traces it to a new traffic source and pauses that source rather than the whole campaign.
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