To retarget Shopify's cart with Klaviyo:
Email settings
Step 1: Create a blank checkout link in Acquire App
Don't select any products
Create a page and design the look and feel of your abandoned cart
You can also add variable such as {{first_name}} in your page
Attach the script <?car-infot=....> to your checkout link URL
<your checkout link URL>?cart-info={{ event.extra.line_items.0.product_id }}-{{ event.extra.line_items.0.variant_id }}-{{ event.extra.line_items.0.quantity }},{{ event.extra.line_items.1.product_id }}-{{ event.extra.line_items.1.variant_id }}-{{ event.extra.line_items.1.quantity }},{{ event.extra.line_items.2.product_id }}-{{ event.extra.line_items.2.variant_id }}-{{ event.extra.line_items.2.quantity }},{{ event.extra.line_items.3.product_id }}-{{ event.extra.line_items.3.variant_id }}-{{ event.extra.line_items.3.quantity }},{{ event.extra.line_items.4.product_id }}-{{ event.extra.line_items.4.variant_id }}-{{ event.extra.line_items.4.quantity }},{{ event.extra.line_items.5.product_id }}-{{ event.extra.line_items.5.variant_id }}-{{ event.extra.line_items.5.quantity }},{{ event.extra.line_items.6.product_id }}-{{ event.extra.line_items.6.variant_id }}-{{ event.extra.line_items.6.quantity }}&first_name={{first_name}}&email={{email}}Step 2: Add the Acquire App URL with the syntax above to your Abandoned Cart email Template
Step 3: Click Preview in your Klaviyo email to see the page.
Shopify Carts variables
Learn more (Klaviyo Resources):