Billing

Billing Items

The basic edition is free of charge. The professional edition is billed based on how many asset quotas you purchase.

**Table 1** SA billing items
Edition	Billing Items	Description
Basic edition	None	Free trial
Professional edition	Asset quotas	Billed based on purchased asset quota, including the total ECS quota and website quota.
Professional edition	Pay-per-use billing	Enabled or disabled at any time and billed for usage by the hour.

Billing Modes

SA is billed on a pay-per-use basis. You are billed for usage duration by the hour. This billing mode allows you to enable or disable the SA service at any time.

Changing Billing Options

Changing asset quotas
When the number of your assets increases, you can increase the asset quota in the same billing mode. A scale-down of purchased quotas is not supported.

Parent topic: Service Overview

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