Start with what you can actually deliver
The single most common mistake is choosing on payout. A high rate attached to criteria your traffic cannot consistently satisfy produces rejections, a falling trust score, and eventually removal from the campaign. Work the other direction: identify the criteria you can hit reliably, then compare payouts among those campaigns.
Read the billable event, not the headline
Two campaigns quoting the same rate can differ enormously in what triggers payment. One may pay on a transfer that meets criteria; another may require the consumer to remain through a full introduction, or the appointment to be attended, or the application to be accepted. The billable-event definition determines your effective rate far more than the headline number.
Check the rejection rules before you accept
A campaign should publish the complete list of grounds on which activity can be rejected, and which of those are disputable. If the list is open-ended or unwritten, your effective payout is unknowable. Also check the review window length and your dispute window — a long buyer window with a short dispute window shifts risk onto you.
Match capacity honestly
Agent minimums refer to agents genuinely dedicated during the campaign's operating hours, not total headcount. Overstating available capacity to qualify for a campaign is the fastest way to underdeliver, and underdelivery costs you the campaign and damages your standing for the next one.