--- title: Email Flow — definition and the sequences worth building | Siite description: "Email flows explained: the trigger-based sequences that recover unbooked quotes and turn one-time customers into repeat ones." url: "https://siite.co/dictionary/email-flow" type: static generatedAt: "2026-10-22T08:21:10.767Z" --- Automation & CRM # Email Flow A sequence of emails or texts sent automatically when a customer does something — books a job, misses an estimate, or hits the anniversary of an install. Also goes by Automation flow, Drip sequence [![Siite](/images/layout/logo.svg)Written by Siite](/about/)Updated September 8, 2026 ## Entry contents [All Terms A to Z←Browse the full dictionary](/dictionary/) A flow is automation with a trigger. Somebody requests a quote, and a sequence starts: confirmation now, a reminder if it goes unbooked, a check-in a week later. Each person moves through on their own clock, without anybody at the office remembering to send anything. > **Briefly explained** > > - A sequence triggered by what one person did. > - Different from a campaign, which goes out once to everyone. > - It works demand you already have rather than buying more. > - It has to stop the moment somebody replies. ## Why is it worth building before more advertising? Because most businesses already have the demand for their next few jobs sitting in old quotes and past customers. That demand costs nothing to reach. It is simply never worked, because working it by hand requires somebody to remember, and nobody does it on the week the schedule is full. See [customer lifetime value](/dictionary/customer-lifetime-value/) for what that neglect is worth over time. ## Which sequences earn their keep? Build them in this order. - **Quote follow-up:** Work you already priced that never got a yes. - **Review request:** Sent when the job is finished and the customer is pleased. See [review velocity](/dictionary/review-velocity/). - **Seasonal reminder:** Tied to the install date or the time of year. - **Winback:** Customers who have not been in touch for a year or two. ## What makes them work? - **Write like the person who did the job**, not like a marketing department - **Keep it short enough to end before it annoys.** Three or four messages - **Stop the flow the moment somebody replies or books.** Nothing damages trust faster than an automated nudge after a yes - **Match the channel to the urgency**: text for time-sensitive, email for anything that needs more than two sentences ## How do you know it is working? By what it recovers, not by open rates. Count the quotes that closed after a follow-up and the reviews that arrived after a request. Those are jobs and ranking signals. An open rate is a number that moves when somebody changes a subject line. ## What do the terms mean? - **Trigger:** The event that starts the sequence. - **Campaign:** A one-off send to a list. Not a flow. - **Exit condition:** The rule that stops a flow early, usually a reply or a booking. - **Winback:** A sequence aimed at customers who have gone quiet. - **Opt-out:** The required way to stop receiving messages. Owner questions ## What owners ask us about Email Flow ### How is a flow different from a campaign? +A campaign goes out once to a list. A flow is triggered by one person's behavior and runs for each of them on their own timeline. ### Which flows should I build first? +The quote follow-up and the review request. One recovers work already quoted, the other compounds into local ranking and trust. ### Should flows use email or SMS? +Both, matched to urgency. Texts for time-sensitive touches like reminders and missed calls, email for anything longer than two sentences. ### How many messages should a flow have? +Few enough that it ends before it annoys. Three or four is plenty for most, and the last one should be clearly the last one. ### What is the most common mistake? +Not stopping the flow when somebody replies or books. An automated nudge arriving after a customer already said yes undoes the goodwill the work earned.Put this to work ## Guides that use this Step-by-step playbooks from the team, written for owners doing the work themselves. No sign-up and no email required. [### HVAC maintenance plan SMS: one-job customers to recurring revenue Most Texas HVAC operators convert under 12% of jobs into maintenance plans. The right SMS automation lifts that to 30-40% and sustains review velocity. Read the guide→](/articles/hvac-maintenance-plan-sms-automation/)[### Boutique fitness email & SMS: the 6-touch new-member onboarding Boutique fitness retention is decided in the first 14 days. Here's the 6-touch email and SMS onboarding sequence that doubles 90-day retention. Read the guide→](/articles/boutique-fitness-onboarding-sequence/)4.9191 reviewsWhere this turns into work ## Follow-up that happens without you Quote follow-ups, review requests and seasonal reminders that fire on their own, written like the person who did the job and stopped the moment somebody replies. [See the service→](/services/email-marketing/)[Ask us about it](/contact/) ![Mikkel Friis, Marketing Manager at Siite](/images/team/panel/mikkel-friis.webp) *Our marketing manager* ## Related entries - [### Missed-Call Text-Back An automation that sends a text message the moment a call goes unanswered, so the caller gets a reply instead of dialing the next business on the list.](/dictionary/missed-call-text-back/) - [### Speed to Lead How long it takes to respond to a new inquiry, measured from the moment a call, form or message arrives to the first real human or automated reply.](/dictionary/speed-to-lead/) - [### Customer Lifetime Value The total profit a customer produces over the whole relationship — every repair, maintenance visit, replacement and referral, not just the first invoice.](/dictionary/customer-lifetime-value/) - [### Review Velocity The rate at which a business earns new reviews over time — a steady, recent flow, rather than a large total collected years ago.](/dictionary/review-velocity/) [All terms A to Z Browse every term A to Z Open the dictionary→](/dictionary/)