Toggle Dynamic on to make your link accept URL parameters that customize the cart on-the-fly. This turns a single link into a flexible template you can personalize for each customer.
What Happens When You Enable Dynamic
When toggled on:
Your link URL accepts URL parameters to customize the cart, pre-fill customer data, and more
A customer picker appears in this card so you can pre-fill customer data at checkout
A Reorder items checkbox appears in the Cart card to auto-populate the cart with the customer's most recent order
Pre-Fill Customer Data
Use the Select customer button to search for a Shopify customer by name or email. When selected, their information is pre-filled at checkout so they don't have to type anything.
You can also pass a customer ID dynamically via URL parameters — this works with any customer ID, not just ones selected in the picker.
URL Parameters
When Dynamic is enabled, your link accepts these parameters:
Parameter | What It Does |
| Add line items (products, quantities, selling plans, attributes) |
| Pre-fill customer data (Shopify customer ID or inline fields) |
| Add cart attributes (key-value pairs on the order) |
| Add a cart note |
For full parameter syntax and examples, see the URL Parameters Reference.