This feature is available in our Plus and Pro plans.
With Approval thresholds, you can decide whether approvals are always required, or only when the budget of the application is over a certain amount.
Thresholds can be enabled and customised separately for Single and Dual Approval flow.
Since Single Approval flow must be on when Dual Approval flow is on, the threshold for Dual approval flow must be the same or higher than that for Single approval flow: