Definition
Behaviour change in email marketing refers to the application of behavioural science principles to design email sequences that encourage subscribers to adopt new behaviours, modify existing habits, or maintain desired actions over time. Unlike transactional or informational emails that simply deliver content, behaviour change sequences are purpose-built to influence what subscribers do, not just what they know. These sequences draw on established psychological frameworks including habit formation theory, nudge theory, and the transtheoretical model of behaviour change.
The habit formation loop, popularised by Charles Duhigg, consists of four components: trigger, action, reward, and investment. In an email context, the trigger is the email notification itself, which prompts the subscriber to perform a specific action. The action is the behaviour the email encourages, such as logging into the app, completing a task, or making a purchase. The reward is the positive outcome the subscriber experiences from completing the action, such as a sense of accomplishment or a tangible discount. The investment is the effort the subscriber puts in, which makes them more likely to repeat the behaviour in the future.
Best Practices
Apply nudge theory by designing email defaults and choice architectures that make desired behaviours the easiest option. A nudge is a subtle change in the choice environment that predictably alters behaviour without removing any options. For example, pre-selecting the preferred choice in an email survey or highlighting the recommended option among several choices.
Use commitment and consistency principles by asking subscribers to make small initial commitments that lead to larger behaviours. A subscriber who clicks a link to read a health tip is more likely to later sign up for a fitness programme. Start with low-friction asks and gradually increase the commitment level across the sequence.
Trigger reciprocity by providing genuine value before asking for anything in return. A sequence that opens with educational content, useful tools, or exclusive insights creates a psychological obligation that increases the likelihood of the subscriber reciprocating with the desired action in later emails.
Measure behaviour change outcomes directly rather than relying on email engagement metrics. Opens and clicks are intermediate metrics; the true measure of a behaviour change sequence is whether the subscriber adopted the target behaviour. Track downstream behaviours in your product or on your website to determine sequence effectiveness.
Frequently Asked Questions
The habit loop consists of trigger (email notification), action (subscriber behaviour), reward (positive outcome), and investment (subscriber effort). Email sequences designed around this loop can help subscribers build new habits by consistently pairing email triggers with rewarding actions.
Nudge theory applies through default settings, choice architecture, and framing. Examples include pre-selecting preferred options in emails, arranging choices to highlight the desired option, and framing messages to emphasise the benefits of the recommended behaviour.
The transtheoretical model describes five stages of behaviour change: precontemplation, contemplation, preparation, action, and maintenance. Email sequences can be designed for each stage, delivering content that moves subscribers from one stage to the next rather than demanding immediate action.
Yes, but email alone rarely creates lasting behaviour change. Email is most effective when it serves as a trigger and reminder within a broader behaviour change programme that includes product design, incentives, and social support.
Track the target behaviour directly: app logins, feature adoption, purchase frequency, content consumption patterns, or any other downstream action the email sequence aims to influence. Email metrics such as opens and clicks are intermediate, not final, measures of behaviour change success.