This topic describes the rules for applying resource plans.
Effective time
A resource plan takes effect immediately after you purchase it.
After a resource plan takes effect, it may take 3 to 4 hours for the plan to be applied to your resource fees.
For example, Alice purchased an outbound data transfer plan of 1 TB for the Chinese mainland at 10:30:30 (UTC+8) on August 12, 2021. The data transfer plan was valid for one month. In this case, outbound data transfer fees were offset around 14:00:00 (UTC+8) on August 12, 2021. Outbound data transfer fees were not offset until the system generated the data transfer bill of the billing cycle from 10:00:00 to 11:00:00.
Order
You can purchase multiple resource plans. If you have multiple resource plans of the same type, they are applied based on the following priority:
Resource plans are applied in chronological order of their expiration time. The resource plan with the earliest expiration time is applied first.
If all resource plans of a specific type are exhausted, any subsequent usage is billed on a pay-as-you-go basis.
For example, Alice purchased two outbound data transfer plans for the Chinese mainland. One of the resource plans expires on July 1, 2021, and the other expires on August 1, 2021. In this case, the resource plan that expires on July 1, 2021 is applied first.
Additional rules
A resource plan can be used to offset only the fees for its corresponding billable item. It cannot be used to offset fees for other billable items.
Outbound data transfer plans can be used to offset only outbound data transfer fees. They cannot be used to offset fees of other billable items such as HTTPS requests.
For outbound data transfer plans, you can use the resource plan to offset fees only if the metering method is pay-by-data-transfer. In addition, resource plans are region-specific. A resource plan for one acceleration region cannot be used to offset fees in another.
For example, an outbound data transfer plan for the Chinese mainland can be used to offset outbound data transfer fees only in the Chinese mainland. You cannot use it to offset outbound data transfer fees in Hong Kong (China), Macao (China), Taiwan (China), or other countries and regions outside the Chinese mainland.
If a resource plan expires or is exhausted, billing automatically switches to pay-as-you-go. We recommend that you monitor your resource plan usage and purchase additional plans as needed to avoid unexpected pay-as-you-go charges.
References
Why am I still charged for resources after I purchase resource plans of CDN?