You can switch an ECS instance from the subscription to the pay-as-you-go billing method. This change allows for partial refunds and lets you start and stop your instance on demand. To prevent service interruptions from overdue payments, ensure your account has a sufficient balance after the conversion.
Impacts
Billing method change: The billing method for the instance type, system disk, subscription data disks purchased with the instance, and the bound static public IP address will change from subscription to pay-as-you-go.
Fees and refunds: The system calculates the remaining value of your subscription based on the refund rules for switching from subscription to pay-as-you-go and refunds the corresponding amount to your original payment method. Any pending renewal or upgrade orders that have not yet taken effect are fully refunded.
ImportantThe conversion voids any complimentary subscription periods granted for ICP filing, service failures, or data center migrations. This complimentary time has no refundable value.
Discount invalidation: If your original subscription instance included a promotional discount, the discount becomes invalid after the conversion. If you switch back to a subscription from pay-as-you-go in the future, you may not receive the same discount.
Limitations
The conversion to pay-as-you-go is not supported for the following instances: expired instances, instances that use public images for Red Hat Enterprise Linux or SUSE Linux Enterprise Server, and instances that use marketplace images.
You cannot make the switch if your monthly refund quota is insufficient.
The conversion consumes your refund quota. The available quota is displayed on the conversion page. If you have exhausted your quota for the current month, you must wait until the first day of the next month for the quota to reset.
Procedure
You can estimate the pay-as-you-go price for your instance configuration on the Custom Launch tab in the ECS console.
Console
Go to the Instances page in the ECS console. In the top-left corner, select the resource group and region of your instance.
Find the target instance and click its ID to open the details page. In the All Operations menu, select Change the billing method of an instance from subscription to pay-as-you-go.
Read the Conversion Precautions in the dialog box. If you agree to the terms, select the confirmation checkbox and click Confirm.
After the operation succeeds, return to the Instances page. The Billing Method for the instance changes to Pay-as-you-go.
To convert multiple instances, use the batch operation feature on the Instances page. You can convert up to 20 instances at a time.
API
Use the ModifyInstanceChargeType API operation to switch an instance from subscription to pay-as-you-go.