Marketing automation is software that carries out repeatable marketing tasks according to rules you set. It sends a welcome email when someone subscribes, reminds a shopper about the basket they left, asks for a review after delivery and tells a salesperson when a lead is ready, without anyone having to remember to do it.
How marketing automation works
Every automation is built from the same parts:
- Data: contacts and what you know about them, pulled from your website, shop, CRM and forms.
- A trigger: the event that starts the flow, such as a sign-up, a purchase, a page visit or a date.
- Conditions: checks that decide who continues, such as “has not bought yet” or “is in the London area”.
- Actions: what happens next, such as sending an email or SMS, updating a field, creating a task or adding someone to an ad audience.
- Timing: the waits between steps.
The flows most businesses start with are a welcome series for new subscribers, an abandoned cart email for online shops, a post-purchase sequence asking for a review or suggesting a related product, a nurture sequence for B2B enquiries that are not ready to buy, and internal alerts when a lead needs a call.
Common platforms include Klaviyo for ecommerce, Mailchimp and Brevo for smaller lists, HubSpot and ActiveCampaign where sales and marketing share data, and Salesforce for larger organisations. Tools such as Zapier and Make connect systems that do not talk to each other directly.
Why it matters
Automation makes follow-up consistent. Small teams rarely have time to email every new subscriber, chase every abandoned basket or check in with every customer after delivery, and automated flows do it the same way every time, at the moment it is most relevant.
In the UK, automated email and SMS marketing must follow PECR. To send marketing to individuals you need their consent, or you must meet the soft opt-in conditions: they bought from you or negotiated to buy, the message is about your own similar products or services, and they were given a simple chance to refuse when you collected their details and in every message since. Every marketing message needs a working unsubscribe link. Messages to business addresses fall under the corporate subscriber rules, which are looser, but UK GDPR still applies where the address identifies a person.
Purely transactional messages, such as order confirmations, are not marketing. Adding promotions to them can change that.
Common mistakes
- Automating a message before it has been shown to work when sent by hand.
- Setting flows live and never reviewing them, so expired offers and broken links keep going out for years.
- Missing suppressions, so a customer with an order in progress receives a “we miss you” email.
- Building overlapping flows that send the same person three emails in one day.
- Ignoring email deliverability, including the authentication that Gmail and Yahoo require from bulk senders.
- Treating everyone in the database as having agreed to marketing.
How to act on it
- Start with two or three flows that match your business, usually a welcome, a follow-up on an abandoned basket or unanswered enquiry, and a post-purchase message.
- Map where each piece of data comes from and confirm it arrives correctly.
- Capture and store consent properly at every sign-up point.
- Test every branch with a dummy contact before going live.
- Review every flow quarterly for accuracy, results and overlaps.
- Measure each flow against people who did not receive it, so you know what it really adds.
Deciding which automations are worth building, and in what order, is part of my digital marketing strategy and consulting work.