Knowledge base
How can we help?
Guides and answers for everything from your first import to webhook signatures.
Getting started
Account setup, picking your vertical, branding your workspace, and your first campaign end to end.
8 articlesLists & imports
CSV mapping, dedupe and owner splitting, tags and notes, suppression and re-uploads.
12 articlesCampaigns & drips
Templates and merge fields, proofs, scheduling, drip cadence, enrollment and exit rules.
14 articlesOffer codes & portal
How codes work, the ZIP gate, portal branding, custom domains, and lead capture.
9 articlesBilling & mail wallet
Plans, per-piece pricing, wallet top-ups and auto top-up, credits for returned pieces.
7 articlesAPI & webhooks
API keys, transactional sends, lead and mail-event webhooks, signatures and retries.
10 articles Most read
The articles everyone needs first.
Importing your first prospect CSVLists & imports · 4 min read
Merge fields: every variable you can print on a pieceCampaigns & drips · 6 min read
Why recipients enter a ZIP code with their offer codeOffer codes & portal · 3 min read
Setting up auto top-up so drips never stallBilling & mail wallet · 3 min read
Connecting a custom portal domain (Pro)Offer codes & portal · 5 min read
How suppression and opt-outs work across re-uploadsLists & imports · 4 min read
Article links are placeholders — content lives in the help-center CMS.
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