Migrating existing subscription contracts to Shopify

This tutorial assumes that you've already completed the preceding tutorial to migrate customer information.

In this tutorial, you'll learn how to do the following tasks:

• Import subscription contracts
• Create billing attempts

After you've created or updated Shopify's customer record, you can import the subscription contracts. Subscription contracts include information about the variant, the plan, the payment method, and the billing and shipping addresses.

To import subscription contracts you can use the subscriptionContractAtomicCreate mutation.

The following example creates a subscription contract including the customer that was previously imported, the payment method from the preceding step, and lines:

You need to create billing attempts to trigger the billing schedule of a contract. When billing attempts are successful, Shopify creates an order.

The following mutation makes a billing attempt by specifying the required fields subscriptionContractId and idempotencyKey (a unique key generated by the client to avoid duplicate payments). In response to a successful mutation, the subscription contract is billed against its current status:

For more information on creating billing attempts, refer to Create a billing attempt.

You can also leverage the Bulk Operations API to perform these operations on large numbers of contracts without incurring any API limit costs.