How to add a digital product and a physical product to a permanent link

Topic summary

Goal: Create a single cart permalink that adds both a digital subscription (via Appstle) and a one-time physical product so customers can check out together. The physical item should be charged once, while the subscription recurs monthly.

Issue: The subscription product cannot be added to the permalink; attempting to do so triggers an error (shown in a screenshot). This blocks combining both items via a single URL.

Suggested approach: Use Shopify’s cart permalink format to add multiple items by variant ID (e.g., https://shop_url/cart/variantId:qty,variantId:qty). This method normally preloads items into the cart in one click.

Limitation: Subscription variants can be tricky because they are not standard Shopify variants. As a result, the standard cart permalink may not work for Appstle-managed subscription items.

Status: No confirmed resolution. One workaround was proposed with a caution about subscription compatibility, and the thread remains open without a proven fix.

Summarized with AI on January 14. AI used: gpt-5.

I would like to create one permalink both for a digital subscription product (setup through Appstle) and a physical product. I want the two of them to be in one permalink so my customers can checkout both products in one go. The two of them have to be purchased together because they are part of a program. The physical product should only be paid once and have it delivered to them. What happens is the customer will be charged for the physical’s price + the subscription 1st month price in the checkout and will be charged in the upcoming months for the subscription only.

I can’t add the digital subscription product (Appstle) in the permalink. It always displays this error message:

Hi @NataliaHB

I think you don’t need an APP to create URL for adding items to the cart in a single click.

https://{{shop_url}}/cart/36485954240671:1,31384149360662:1

For more detail please refer to the below URL

https://help.shopify.com/en/manual/products/details/cart-permalink

Note: However, subscription variants can be tricky as they are not the part of Shopify variant.