# How to create on-brand emails with AI and send them through Klaviyo Canonical: https://brew.new/blog/klaviyo-integration Author: Brew Team Published: 2026-09-20 Updated: 2026-09-29 The campaign brief goes out on Monday, and by Wednesday the draft in Klaviyo still looks like the default template with your logo on top. Someone adjusts the button color, swaps in the closest font on offer, and sends it anyway because the segment is ready. Your profiles, flows and revenue reporting are in Klaviyo. Moving all of that to change how emails get designed is rarely worth it. The simpler setup is to design in Brew, export to Klaviyo, and keep sending where you already send. This guide covers that path end to end. Brew creates the email and exports it as a template, and Klaviyo sends it. Brew sends nothing in this setup. ## Key takeaways - Brew builds the email from your brand. Klaviyo receives it as a reusable CODE template for campaigns or flows. - Connect Klaviyo with OAuth. You need admin access in Klaviyo, and Brew never sees your Klaviyo password or API keys. - Export creates a template only. You pick the audience, set the final subject and send or schedule in Klaviyo. - If you edit the email in Brew later, export it again. ## Before you start You need: - A Brew account with your brand added. The [Free plan](/pricing) is enough to try this, though free-plan emails carry a Brew watermark. - A Klaviyo account where you are an admin. - Your brand guide, if you have one, and one recent email you consider on-brand. You do not need a verified sending domain in Brew, because Klaviyo sends. ## Step 1: Give Brew your brand Add your brand with your website domain. Brew's extraction agent reads the site and writes an `email-design.md`, a brand document covering colors, email-safe fonts, layout habits, signature moves and voice. Upload anything that describes your brand better than the website does: a PDF brand guide, logos, product shots, past emails. When your uploads and the site disagree, [Brew follows your uploads](/blog/email-design-md). Open the generated document and read it. If the voice is off, change the sentence. Brew uses the edited document for every email after that. ## Step 2: Brief the email Describe the email in chat the way you would brief a designer. For example: ```text Audience: customers who bought in the last 90 days, not subscribed to the loyalty program. Job: get them to join the loyalty program this week. Offer: points on every order, double points in the first 30 days. Proof: only use the terms on example.com/loyalty. No statistics, no customer quotes. Constraints: under 150 words, one CTA to example.com/loyalty, promotional footer. ``` Brew generates the email on the canvas. Ask for two or three directions if you are unsure of the angle. [How to brief an email agent](/blog/how-to-brief-an-email-agent) explains why the proof line matters. ## Step 3: Edit and check it in Brew Select the email you want and refine it. Edit with a prompt ("shorten the intro to two sentences"), or click into text, links, buttons and images to change them by hand. Preview at mobile and desktop widths. Before export, check that every link points to a real URL, that images have alt text, and that the footer has your physical address. Review the preview here. After export, send a test from Klaviyo to the clients your audience uses, including Outlook and mobile inboxes (step 6). ## Step 4: Connect Klaviyo In Brew, open Integrations and connect Klaviyo. The connection uses one-click OAuth, according to the [Klaviyo export docs](https://docs.brew.new/integrations/export/klaviyo). You sign in to Klaviyo and approve access. You only do this once per brand. ## Step 5: Export the template Open the email and choose Send, then Export template. Select Klaviyo, name the template and export. Klaviyo templates carry no subject, so set the subject on the Klaviyo campaign. Brew then does four things: 1. Renders the email to production HTML. 2. Adds the preview text you set in Brew. 3. Converts Brew's unsubscribe placeholder to Klaviyo's format. 4. Creates a reusable CODE template in Klaviyo's template library. If you work through an agent or code, the same export is available as `export_email` over [MCP](/mcp) or as `POST /v1/emails/{emailId}/export` with `"provider": "klaviyo"` in the API. Add `"dryRun": true` to check the connection without creating a template. ## Step 6: Send from Klaviyo In Klaviyo, open your template library and find the template by name. Use it in a campaign or as a message in a flow. Set the final subject line, choose the list or segment, and send or schedule as you normally do. Klaviyo handles delivery, and opens, clicks and revenue reporting stay in Klaviyo. Send a test to yourself first. Check the unsubscribe link, and check any personalization you added in Klaviyo against a real profile. ## Step 7: Update and repeat An export is a copy. If you change the email in Brew, export it again and switch your campaign or flow to the new template. For recurring work, such as a weekly product update or a seasonal campaign, set your best email as the reference design in Brew. New generations then follow its structure. ## What this setup does not do - It does not sync profiles, lists or events between Klaviyo and Brew. The integration only exports templates. - It does not create or schedule Klaviyo campaigns or flows. - It is not a Klaviyo backup or data export tool. If you later want triggered emails sent from Brew itself, Brew has its own automations and integrations. That is a separate setup with a verified sending domain. ## Frequently asked questions ### Why not use Klaviyo's built-in AI? You can. Klaviyo's [Composer](https://help.klaviyo.com/hc/en-us/articles/52308768755739) drafts campaigns from your account's brand settings and history. Add Brew if you want designs built from a detailed brand document, a canvas for comparing directions, or one design system across several ESPs or brands. ### Can I edit the template in Klaviyo after export? Yes, as a CODE template, which means editing the HTML. For layout changes, it is usually faster to edit in Brew and export again. ### Does exporting cost credits? No. Export is free. Generating and editing emails in Brew uses AI credits from your plan. ### Can I use the template in a Klaviyo flow? Yes. The CODE template works in both campaigns and flows. ## Next step To try it with one campaign, [connect Klaviyo in Brew](/browse/integrations/klaviyo), export your next email, and send yourself a test from Klaviyo before scheduling it.