Learn why Shopify limits checkout app blocks to three per row and how to work with this platform limitation.

Shopify limits each row in the checkout page editor to a maximum of three app blocks. This applies to all checkout app blocks from any Shopify app, not just ABConvert.

This is a platform-level limitation set by Shopify. The checkout page editor enforces a three-block maximum per row to ensure user experience based on Shopify document.