Email Workflow Automation · Trigger-Based Sequences

Email automation platforms (Klaviyo, HubSpot, ActiveCampaign, Salesforce Marketing Cloud) allow you to define workflows — sequences of emails and actions triggered by specific events or conditions. Once built, these workflows run automatically for every subscriber who meets the trigger criteria, without any manual intervention per send.

The business case for automation: the highest-value email sequences (abandoned cart, welcome series, post-purchase) are time-sensitive and personalised. Sending them manually for every subscriber is impossible at scale. Automation ensures every subscriber receives the right message at the optimal time — whether it is 2am on a Sunday or during a sales peak.

A workflow consists of: a trigger → conditions → steps (emails, delays, actions, branches).

TRIGGER: Cart Abandoned (user added item to cart but did not purchase in 1 hour)

CONDITIONS:
  - Subscriber is opted in to marketing emails
  - Cart value > £20 (optional threshold)
  - Subscriber has not completed purchase in last 60 min

WORKFLOW:
  Step 1: Wait 1 hour after trigger
  Step 2: Send Email 1 — "You left something behind"
  
  Step 3: BRANCH — Did subscriber purchase after Email 1?
    YES → Exit workflow (no further sends)
    NO → Wait 24 hours
  
  Step 4: Send Email 2 — "Still thinking about it?"
  
  Step 5: BRANCH — Did subscriber purchase after Email 2?
    YES → Exit workflow
    NO → Wait 48 hours
  
  Step 6: Send Email 3 — "Last chance — items sell out quickly"
  
  Step 7: Exit workflow regardless of outcome

Branching (conditional splits or if/then logic) allows workflows to send different paths to different subscribers based on conditions. Common branching conditions:

• Did subscriber open the last email? Non-openers receive a follow-up with a different subject line; openers receive a different next step
• Did subscriber click a specific link? Subscribers who clicked the product page link go to a more sales-focused sequence; others continue the nurture sequence
• Is subscriber a customer? Existing customers receive cross-sell messaging; non-customers receive first-purchase messaging
• Subscriber attribute value. Subscribers in London receive a different version than those in Manchester; subscribers with a plan of "Pro" receive different content than "Starter"

Keep branching manageable — deeply nested branching logic becomes difficult to audit and debug. Limit workflows to 2–3 levels of branching. For more complex personalisation, use dynamic content within emails rather than separate workflow branches.

Quarterly automation audits prevent compounding logic errors and identify underperforming sequences:

• List all active workflows and their triggers — check for overlapping triggers that could send the same subscriber to multiple conflicting workflows simultaneously
• Review performance metrics per workflow (open rate, click rate, conversion rate, unsubscribe rate) — compare against benchmarks and historical performance
• Test entry conditions — manually trigger each workflow with a test email to verify the logic and content are correct
• Check for outdated content — automations built 12+ months ago may reference obsolete offers, discontinued products, or outdated information
• Verify exclusion logic — confirm workflows correctly exclude subscribers who have completed the intended action (e.g. abandoned cart workflow correctly excludes subscribers who subsequently purchased)

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