Overview

You can also change the billing mode later if it no longer meets your needs. Table 2 lists the changeable EIP billing items.

Changing the billing mode does not change the EIPs or interrupt their use.

**Table 1** Change description
Billing Mode Change	Change Scenario	Description
From yearly/monthly to pay-per-use	From yearly/monthly to pay-per-use (billed by bandwidth)	An EIP billed on a yearly/monthly basis can be directly changed to be billed on a pay-per-use basis (billed by bandwidth). You can change a yearly/monthly EIP to be billed on a pay-per-use basis (by bandwidth) after the current subscription expires. For details, see From Yearly/Monthly to Pay-Per-Use (Billed by Bandwidth) upon Expiration. The new billing mode takes effect only after the yearly/monthly subscription expires. You can change a yearly/monthly EIP to be billed on a pay-per-use basis (by bandwidth) immediately. For details, see From Yearly/Monthly to Pay-Per-Use Immediately (Billed by Bandwidth). The new billing mode is applied immediately.
From yearly/monthly to pay-per-use	From yearly/monthly to pay-per-use (billed by traffic)	An EIP billed on a yearly/monthly basis cannot be directly changed to be billed on a pay-per-use basis (by traffic). To change this: Change the EIP to be billed on a pay-per-use basis (by bandwidth). For details, see Yearly/Monthly to Pay-Per-Use. Change the EIP to be billed by traffic on a pay-per-use basis. For details, see Pay-per-Use EIPs: Billing Change Between By Traffic and By Bandwidth.
From pay-per-use to yearly/monthly	From pay-per-use (billed by bandwidth) to yearly/monthly	An EIP that is billed by bandwidth on a pay-per-use basis can be directly changed to be billed on a yearly/monthly basis. For details, see Pay-per-Use to Yearly/Monthly. The new billing mode is applied immediately.
From pay-per-use to yearly/monthly	From pay-per-use (billed by traffic) to yearly/monthly	An EIP that is billed by traffic on a pay-per-use basis cannot be directly changed to be billed on a yearly/monthly basis. To change this: Change the EIP to be billed by bandwidth on a pay-per-use basis. For details, see Pay-per-Use EIPs: Billing Change Between By Traffic and By Bandwidth. Change the EIP to be billed on a yearly/monthly basis. For details, see Pay-per-Use to Yearly/Monthly. The new billing mode is applied immediately.
Pay-per-use EIPs: Billing change between by traffic and by bandwidth	From billing by traffic (pay-per-use) to billing by bandwidth (pay-per-use)	A pay-per-use EIP billed by traffic can be directly changed to be billed by bandwidth. For details, see Pay-per-Use EIPs: Billing Change Between By Traffic and By Bandwidth. The new billing mode is applied immediately.
	From billing by bandwidth (pay-per-use) to billing by traffic (pay-per-use)	A pay-per-use EIP billed by bandwidth can be directly changed to be billed by traffic. For details, see Pay-per-Use EIPs: Billing Change Between By Traffic and By Bandwidth. The new billing mode is applied immediately.

**Table 2** Changeable EIP billing items
Billed Item	Change Description	Reference
EIP bandwidth	An EIP that is billed by bandwidth on a pay-per-use basis can be changed to be billed on a yearly/monthly basis. Pay-per-use EIPs billed by bandwidth can be changed to pay-per-use EIPs billed by traffic, and vice versa. An EIP billed on a yearly/monthly basis can be directly changed to be billed on a pay-per-use basis (billed by bandwidth). For details, see Figure 1.	Pay-per-Use to Yearly/Monthly Pay-per-Use EIPs: Billing Change Between By Traffic and By Bandwidth Yearly/Monthly to Pay-Per-Use