Modifying Configurations

Currently, only Ray and SQL warm-up resources support billing-mode changes. Other service scenarios use pay-per-use billing and do not support order or billing mode adjustments. Therefore, configuration changes involve only Ray and SQL warm-up size adjustments.

Modifying Ray or SQL warm-up resource sizes has an impact on costs as shown in Table 1.

**Table 1** Impact on fees
Current Billing Mode	Change Scenario	Impact on Costs
Pay-per-use	Changing the number of Ray resources (specifications upgrade/downgrade)	The change will take effect immediately.
Pay-per-use	Changing the number of SQL warm-up resources (specifications upgrade/downgrade)	The change will take effect immediately.
Yearly/Monthly	Increasing the number of Ray resources (specification upgrade, with price difference charged)	The new resource quantity takes effect immediately upon specification upgrade and will be billed accordingly for the remainder of the original period.
Yearly/Monthly	Decreasing the number of Ray resources (specifications downgrade)	The new resource size takes effect immediately upon specification downgrade within the original period. The price difference will be refunded based on the used period.