Build a trigger-based email series that runs automatically — welcome new subscribers, follow up after purchases, or re-engage cold contacts without sending a single email by hand.
The single most scalable thing you can do for your email marketing is automate the emails you would otherwise send manually to every new person who joins your list or buys your product. An email sequence is a pre-written series of messages that sends automatically based on a trigger event — someone subscribes, makes a purchase, or gets a specific tag — and then delivers each email at a scheduled interval without any action from you. UniLink's sequence builder lets you create these automations visually, step by step, and track how each individual email in the series performs over time.
What Email Sequences Do
An email sequence, also called an automation or drip campaign, is a series of emails that fires in order based on a starting trigger and timed delays between steps. Unlike a one-time campaign that you send once to a segment, a sequence is always running in the background — whenever a new contact matches the trigger conditions, they automatically enter the sequence and receive each email at the right time relative to when they triggered it, not relative to when you set it up.
This makes sequences ideal for workflows that need to happen the same way for every person, regardless of when they join: welcoming new subscribers, delivering a lead magnet or free resource, onboarding someone after their first purchase, following up on an abandoned cart, or re-engaging contacts who have gone quiet. The sequence runs 24 hours a day, 7 days a week, and every new contact who meets the trigger conditions enters it automatically.
Each step in a sequence has two components: the email content and the delay before it sends. The delay can be minutes, hours, or days. You can also add conditions to steps — for example, "only send this email if the contact has not yet clicked a specific link" — so the sequence responds to contact behavior rather than just running on a fixed schedule regardless of what the recipient has done.
How to Get Started With Email Sequences
- Open the Sequences section — from your UniLink dashboard, go to Email, then click "Sequences" in the sub-menu. Click "Create Sequence" to open the sequence builder.
- Name the sequence — give it a descriptive internal name like "New Subscriber Welcome" or "Post-Purchase Follow-Up." This name is only visible to you and helps when managing multiple active sequences.
- Choose a trigger — click "Set Trigger" and select the event that starts the sequence for a contact. Options include: Contact subscribes (joins your list), Contact makes a purchase, Tag is added to contact, Contact enters a CRM segment, or Contact fills out a form.
- Configure trigger details — depending on the trigger type, you may need to specify which product, which tag, or which segment the trigger applies to. For example, "Tag added: free-guide-downloaded" limits the trigger to contacts who downloaded a specific lead magnet.
- Add the first email step — click "Add Step," select "Email," and write the first email in the sequence. Set the subject line, from name, and body content just like a regular campaign. This first email often sends with a very short delay (0 minutes to 30 minutes) so it arrives while the trigger action is fresh in the contact's mind.
- Set the delay to the next step — after each email step, set a delay. Common choices: 1 day, 3 days, 7 days. The delay starts counting from when the previous step was sent to that contact, not from when you created the sequence.
- Add remaining steps — repeat the add-step process until the full series is complete. A typical welcome sequence has 3–5 emails. A post-purchase onboarding sequence might have 7. Click "Activate" when all steps are in place to make the sequence live.
How to Use Email Sequences
- Add a condition to a step — click the settings icon on any email step, then add a condition such as "Only send if contact has not opened the previous email" or "Only send if contact has not made a purchase yet." This prevents sending irrelevant emails to contacts who have already taken the action you are nudging them toward.
- Add a tag step — between email steps, insert a "Tag Contact" action. For example, after email 3, add the tag "completed-welcome-sequence." This lets you filter in CRM to see who has finished the sequence and keeps your automation history auditable.
- Preview each email in the sequence — click any email step, then click "Preview" to see how it renders. Send a test to your own inbox for each email, especially the first one that uses personalization fields like the contact's first name.
- Monitor per-step performance — once the sequence is active and contacts start entering it, click the sequence name to see a step-by-step performance dashboard. Each email shows its own open rate, click rate, and unsubscribe count. This lets you pinpoint exactly which email in the series is underperforming.
- Pause a sequence without losing enrollments — if you need to edit an active sequence, click "Pause." Contacts already in the sequence are paused at their current step; no new emails are sent until you reactivate. Contacts who have not yet entered the sequence will enter when you reactivate.
- Remove a contact from a sequence manually — open the contact's profile in CRM, find the "Active Sequences" section, and click "Remove" next to the sequence name. This immediately stops further emails for that contact without affecting other contacts in the same sequence.
- Clone a sequence to test a variation — use the duplicate feature to copy an existing sequence, edit the subject lines or content in the clone, and run both simultaneously to different audience segments. Compare performance after 30 days to identify which version to keep.
Key Settings Explained
| Setting | What it controls | Best practice |
|---|---|---|
| Trigger type | The event that enrolls a contact into the sequence | Use "Tag added" as the trigger whenever possible — it gives you the most control because you can add a tag manually, from a form, or from an automation, making the trigger flexible across multiple entry points |
| Step delay | How long after the previous step fires before this step sends | First email: 0–30 minutes (immediate is fine). Day 1–3 follow-ups: 1–2 day delays. Later nurture emails: 5–7 day delays. Longer gaps are better than spamming — respect attention budgets |
| Step condition | Whether the step sends regardless or only if specific conditions are met | Add "has not yet purchased" conditions to promotional emails in a nurture sequence — it prevents you from sending a buy-now email to someone who already bought |
| Re-enrollment setting | Whether a contact can enter the same sequence more than once | Disable re-enrollment for welcome sequences (a subscriber should only be welcomed once). Enable it for re-engagement sequences that should fire whenever the trigger condition is met again |
| Exit condition | An event that removes a contact from the sequence before it completes | Set "made a purchase" as an exit condition on any promotional sequence — stop selling to someone who already bought and send them to the post-purchase sequence instead |
How to Get the Most Out of Email Sequences
Map out your sequence on paper before building it in the tool. Write the goal of each email, the delay, and any conditions. A clear picture of the full flow before you start editing individual emails prevents you from ending up with a sequence where emails three and four overlap in message or where the call to action changes direction mid-series. The sequence is a narrative — each email should feel like a natural continuation of the last.
Pay close attention to the step-by-step performance dashboard once a sequence has been running for a few weeks. An open rate drop between step 1 and step 2 usually means the subject line on step 2 is weak. A click-rate drop on step 3 often means the offer or CTA on that email is not landing. Fix the weakest link first — improving one underperforming step in a sequence compounds across every future contact who goes through it.
Sequences work best when they are short and purposeful rather than long and comprehensive. A 3-email welcome sequence that delivers one clear value per email, builds trust, and asks for one small action will outperform a 10-email marathon that tries to teach everything about your brand in the first week. You can always extend a sequence later; it is much harder to recover trust you burned by overwhelming someone in their first days on your list.
Use the tag-step actions inside sequences to build a behavior history for every contact. By tagging contacts when they complete a sequence, open a specific email, or trigger an exit condition, you create clean CRM data that powers future segmentation and personalization. A contact tagged "completed-onboarding-sequence" and "opened-pricing-email" is telling you exactly where they are in their decision process — and your next campaign can speak directly to that.
Troubleshooting Common Issues
| Problem | Likely cause | Fix |
|---|---|---|
| Contacts are not entering the sequence after the trigger event | The sequence is paused, the trigger condition is too specific (wrong tag name or wrong product ID), or the contact was previously in the sequence and re-enrollment is disabled | Verify the sequence status is Active; check the trigger configuration for exact tag spelling or product match; check re-enrollment settings if the contact has been in this sequence before |
| A contact received an email they should have been excluded from | The step condition was set but the logic is inverted (is vs. is not), or the condition was added after some contacts already reached that step | Review the condition logic on the step; conditions added to an already-active sequence only apply to contacts who have not yet reached that step — contacts already past it are not retroactively checked |
| Sequence emails are going to spam | Sending domain is not verified, the sequence sends too many emails too quickly, or the content is triggering spam filters | Verify your sending domain in Email Settings; increase delays between early steps; review email content for spam trigger phrases; ensure unsubscribe link is present in every step |
| Per-step statistics are not showing data | The sequence is newly activated and not enough contacts have reached that step yet, or tracking was disabled on individual email steps | Wait 24–48 hours after the first contacts complete a step for tracking data to populate; check that email tracking is enabled in both the sequence settings and individual step settings |
Pros
- Runs automatically 24/7 — every new subscriber or buyer gets the same high-quality follow-up regardless of when they trigger it
- Per-step analytics pinpoint exactly which email in the series needs improvement
- Exit conditions and step conditions make sequences behave intelligently based on contact actions, not just a fixed schedule
- Tag steps inside sequences build a rich CRM history that powers future segmentation automatically
Cons
- Sequences require upfront planning and writing — a poorly mapped sequence can confuse or overwhelm new contacts if not thought through carefully
- Conditions added to a live sequence do not retroactively apply to contacts already mid-sequence
- No built-in branching logic (if/else paths based on opens or clicks) — complex conditional flows require multiple sequences with tag-based triggers
Frequently Asked Questions
Can a contact be in multiple sequences at the same time?
Yes. A contact can be enrolled in multiple sequences simultaneously. UniLink tracks each sequence enrollment independently. However, if the same contact is in three sequences that each send an email on the same day, they will receive three emails that day — so be mindful of total email frequency across all active sequences to avoid overwhelming contacts.
What happens to contacts already in a sequence if I edit it?
Pausing a sequence freezes all enrolled contacts at their current step. Edits you make only apply to steps that contacts have not yet reached. Contacts who have already passed a step you edited will not re-receive that step — they continue forward from where they are.
Can I use personalization fields in sequence emails?
Yes. UniLink supports merge fields like {{first_name}}, {{email}}, and any custom contact fields you have defined in CRM. Insert them directly into the email subject line or body. Contacts with missing values will display a fallback text that you configure when inserting the field.
How do I prevent a welcome sequence from sending to existing subscribers when I activate it?
When activating a sequence, UniLink asks whether to enroll contacts who currently match the trigger condition or only new contacts who trigger it going forward. Choose "New contacts only" to prevent your existing list from receiving a welcome sequence designed for first-time subscribers.
Is there a limit on how many steps a sequence can have?
There is no enforced step limit, but practical limits exist: sequences longer than 10–12 steps have significantly lower completion rates because contacts unsubscribe, go cold, or complete the goal before the sequence ends. Build focused sequences and use exit conditions aggressively rather than building a single 20-step mega-sequence.
Key Takeaways
- Sequences run automatically for every contact who triggers them — set up once and they deliver the same quality follow-up around the clock.
- Map the full sequence flow on paper before building it — each email should advance one narrative toward one conversion goal.
- Always add an exit condition for the conversion event: stop selling to contacts who already converted and move them to a post-conversion sequence instead.
- Monitor per-step open and click rates to find the weakest link in the series and fix it — improvements compound across every future contact who enters.
- Use tag steps inside sequences to build CRM behavior history that powers smarter segmentation and personalization in future campaigns.
Ready to turn every new subscriber into a nurtured lead automatically?
Build your first email sequence in UniLink today — set the trigger, write the emails, and let your follow-up run on autopilot while you focus on creating.
Get Started Free