An email sequence is a set of emails sent in a planned order, often based on when someone joins or what they do.
In plain English
This sits between a repeated task and a system doing that task reliably for you. Before the software matters, the process has to make sense: what starts it, what information moves, what should happen next and what happens if something goes wrong.
A real example
A new client might receive a welcome email immediately, preparation details the next day and a reminder before the appointment.
The value comes from making the process consistent and repeatable. A bad manual process does not become good merely because it is automated.
Why it matters
It gives useful information at the moment it is most likely to help.
Automation is useful when it removes repetitive work without removing judgment where judgment is needed. A simple process automated well is usually more valuable than a complicated chain nobody understands.
When do you actually need to care?
You need to care when the same information is being copied between systems, when follow-ups are forgotten, when routine messages take time every week, or when a process depends on one person remembering every step. Those are good candidates for automation. A rare task that requires judgment usually is not.
Useful questions to ask
- What exactly triggers the automation?
- Which information moves, and where does it come from?
- How will someone notice and recover if the automation fails?
What should you do with this?
Write the process down before choosing a tool: trigger, information, action, delay or condition, and exit. If the manual process is confusing, automation will normally make the confusion happen faster.
What this does not mean
A nurture sequence should not endlessly “warm up” people with disguised sales pressure.
The short version
Each email should earn its place by being timely and useful.
Further reading: Mailchimp on automated customer journeys.