Programs & flows
Welcome series
Also known as: onboarding email series · welcome flow
A sequence of automated emails (typically 3-7) triggered by sign-up that onboards a new subscriber or customer — the single highest-ROI lifecycle program for most businesses because the audience is at peak intent.
A welcome series is the first lifecycle program a new subscriber or customer enters. Typical structure: send 1 (immediate, welcome + confirmation), send 2 (day 1-2, product value + first action), send 3 (day 4-7, social proof + second action), optional sends 4-7 for deeper onboarding. Open rates on welcome series routinely hit 40-60%, click rates 8-15% — multiples of promotional campaign benchmarks — because the recipient just opted in and retention curves drop fastest in the first 14 days. Welcome series is usually the single most important program a lifecycle team owns: it sets expectations, drives activation, and every percentage-point lift in series-end activation compounds across every downstream program. Common failures: treating welcome as a single send rather than a series, over-promotional content in early sends, no activation-event triggers to pull customers out of the series once they've activated.
Read next
The welcome email sequence: the 7-day structure that works
Most welcome sequences over-pitch, under-onboard, and keep firing long after the user has either activated or wandered off. Here's the 7-day shape that moves signups to activation — shorter, sharper, conditional on what the user actually did — and the stop rules that keep it from training users to ignore you.
Onboarding flows: signup to activated
Most onboarding programs fail in the same three ways — no activation metric, no awareness of what the user just did in-product, and a sequence that won't stop once the user has clearly activated. Fix those three and the program starts moving signups to activated users in numbers you can actually defend.