Let customers add products from the customer portal

Your subscribers can now add products to their own subscription right from the customer portal — no need to contact you to grow their order. You control it: turn on the add-line permission and the option appears for customers.

This turns the portal into a place where subscribers can build up their plan themselves. A customer who wants to add another product to their recurring box or order can do it in a couple of clicks, and it's reflected on their next renewal.

Because it's gated behind a permission you grant, you decide whether this is available for your store — so you can offer self-serve add-ons where it makes sense and keep the subscription locked down where it doesn't. For merchants looking to grow order value, letting customers add to their own subscriptions is a low-friction way to increase what each subscriber orders over time.