# Campaigns & inbox

> Writing sequences, merge tags, A/B tests, sending limits, campaign statuses, tracking and the unified Inbox.

Source: https://warmerly.com/docs/topics/campaigns-and-inbox

Writing sequences, merge tags, A/B tests, sending limits, campaign statuses, tracking and the unified Inbox.

## Articles

- [How do I write an email sequence for a campaign?](https://warmerly.com/docs/help/email-sequences): Open a campaign's Sequence tab, pick a template or start blank, add Email and Wait steps, and edit. A step-by-step guide to writing your sequence.
- [What merge tags and custom variables can I use in my emails?](https://warmerly.com/docs/help/merge-tags): Built-in tags are email, firstName, lastName, companyName and the sender tags. Any other column you import becomes a custom variable.
- [How do I personalise every email with the AI opener?](https://warmerly.com/docs/help/ai-opener): Put the aiopener tag at the top of your email. Warmerly writes a one or two sentence opening line per lead from your campaign brief and the lead's…
- [How do I A/B test a subject line or email in a campaign?](https://warmerly.com/docs/help/ab-test-email-copy): On an email step, click Test another version of this email. Warmerly sends up to four versions in rotation and picks the winner once each has enough…
- [How do I see who has been contacted in a campaign?](https://warmerly.com/docs/help/campaign-audience): A campaign's Audience tab lists every lead with its status and how many emails have gone out. Here is how to read each column.
- [What do the campaign statuses mean (draft, sending, paused, completed)?](https://warmerly.com/docs/help/campaign-statuses): A campaign is a draft until you start it, then sending, scheduled or needs attention while live. What each status means and what to do next.
- [Why does my campaign send fewer emails than my daily limit?](https://warmerly.com/docs/help/campaign-sending-schedule): The gap between sends, the sending hours, the volume ramp and each mailbox's own limit usually cap a campaign well below its daily limit.
- [Can I launch a campaign before my mailbox has finished warming up?](https://warmerly.com/docs/help/launch-before-warmup-finishes): Yes. Build and launch on day one. A new mailbox starts low and climbs each sending day. The free mailbox is for replies, tests and one small first…
- [What stops a campaign sequence for a lead?](https://warmerly.com/docs/help/what-stops-a-sequence): A reply, an out-of-office reply, a bounce, an unsubscribe, the do-not-contact list, removing the lead or finishing the last step all stop a lead's…
- [How do open and click tracking work in a campaign?](https://warmerly.com/docs/help/open-and-click-tracking): Turn tracking on under a campaign's Settings > Tracking. Click tracking is on by default, open tracking is off, and plain text mode removes both.
- [How do unsubscribe links work in campaign emails?](https://warmerly.com/docs/help/unsubscribe-links): With a working custom tracking domain, campaign emails get an unsubscribe link and one-click headers automatically. How they work and what a click…
- [What does the advice on my campaign mean?](https://warmerly.com/docs/help/campaign-advice): The Warmi card on a campaign's Overview and Settings tabs points out problems in your settings and results, and links to the fix. It never blocks you.
- [How does the Inbox work? (replies, categories and answering leads)](https://warmerly.com/docs/help/inbox): Outreach > Inbox shows replies from every connected mailbox in one place. Replies to your campaigns are sorted into Interested, Not relevant and Spam.