Opening a subscription and finding Shipping Information.

Changing the address: Delivery Type (Shipping, Local Delivery or Pickup), Current Address, Addresses from Shopify, the pencil to edit an address before you save it, and Add New Address.

Sync delivery address with customer account, and why Billing Address follows the customer's card.

Changing the delivery method: Show unavailable methods, Enter manually, and picking a method such as Express.

Delivery Information: Use Custom Delivery Price, editing the Delivery Price, and Sync.

Payment Info: seeing the card, choosing another saved payment method, Send Link To Update Card, and Shop Pay customers.

Checking the customer's view with Preview under Manage Portal, and the Shipping Address Updated email.

A new address changes only this subscription, not the customer's account. Every change applies from the subscription's next order.

Picking a fixed-rate delivery method also sets its price and ticks Use Custom Delivery Price.

Unticking Use Custom Delivery Price lets automatic price updates resume; Sync runs that update now.

Send Link To Update Card emails the customer so they enter the new card themselves.

In Customer Portal settings, you choose whether customers can change these themselves.