This topic describes the frequently asked questions (FAQ) about billing.
Questions
Does KMS support free trials?
Yes, it does. Click here to apply for a free trial.
The free trial period is 14 days. If you no longer need the KMS instance after the free trial expires, release it before the expiration date. Otherwise, you are charged on a pay-as-you-go basis.
Eligibility for free trial: You must be a new KMS user. Your current Alibaba Cloud account and any associated accounts must not have previously used KMS.
Instance details:
Number of instances: The free trial is limited to one software key management instance per enterprise. If an enterprise has multiple Alibaba Cloud accounts, only one account is eligible for the free trial.
Instance quota: The number of keys and credentials is not limited.
Expiration of the free trial:
Free trial period: 14 days.
After the free trial expires:
After the free trial expires, the instance is automatically converted to a pay-as-you-go instance. You do not need to redeploy the instance or migrate data, which ensures business continuity. You cannot convert the instance to a subscription instance.
If you no longer need the instance after the free trial expires, release it before the expiration date. Otherwise, you are charged on a pay-as-you-go basis.
Does the billing for a KMS instance stop after it expires?
Yes, it does. The billing for a KMS instance stops after the instance expires.
Can I unsubscribe from a KMS instance?
For subscription KMS instances, you can request a partial refund or cancel a pending renewal order. You can request a partial refund only for KMS instances that are in the Disabled or Enabled state. For more information, see Unsubscription rules.
If a KMS instance uses the pay-as-you-go billing method and you no longer need the instance, you can release the pay-as-you-go instance.