Connecting Klaviyo
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Open the Checkout Links app in your Shopify admin
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Go to Settings > Klaviyo
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Click Connect Klaviyo
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Sign in to your Klaviyo account and authorize the connection
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Once connected, you’ll see your Klaviyo account status on the settings page
The connection uses OAuth, so your Klaviyo credentials are never stored by Checkout Links.
Verifying the Connection
After connecting, the settings page shows your connected Klaviyo account, plus two sections:
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Customer shortcodes — each customer’s shortcode is saved to their Klaviyo profile as
checkout_links_shortcode. New customers sync automatically; click Sync shortcodes to add it to customers who already have a Klaviyo profile -
Email blocks — lists the blocks you have created, with an Add block button to create more
Ready-made email blocks
Email blocks are buttons, offer cards and banners for your Klaviyo emails. Click Add block, choose a type, select the link it should open and click Create. The block appears in your Klaviyo content library:
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Button — opens any of your links
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Offer — a card with the link’s products, prices and discounts, and a checkout button
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Reorder banner — opens a reorder link, and only shows to customers who have ordered before
You can also add a block from the link itself, under Extensions > Klaviyo.
Each block already has the personalized link built in, so you can drag it straight into any campaign or flow, with no copy-pasting links. Search Checkout in Klaviyo’s content library to find them. See Klaviyo email blocks for styling and details.
To take a block out of Klaviyo, click the delete icon next to it. If you break a block, remove it and create a new one.
Disconnecting
You can disconnect Klaviyo at any time from the same settings page. Click Disconnect and confirm. This won’t affect your existing Klaviyo flows, and links already in them keep working. New customers just stop getting a shortcode on their Klaviyo profile until you reconnect.
What You Can Do with Klaviyo
Once connected, you can set up:
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Abandoned cart recovery — Restore abandoned carts with incentive-powered checkout links
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Reorder links — Automated reorder reminders with one-click checkout
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Customer links — Pre-fill checkout info using Klaviyo customer data
Requirements
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A Klaviyo account (free or paid)
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Klaviyo must be connected to your Shopify store
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The Checkout Links app must be installed and set up