Besides enabling the coupon on the pop-up, you can also schedule coupons to show it at a later time or for a specific time period. This is available in Growth and Unlimited Plan only.
Here's how to schedule the coupon on the pop-up.
Go to Manage Coupons and click on Edit Coupon
2. Enable the “Scheduled Coupon” option
3. Click on the Time zone box and select the time zone from the dropdown.
4. Select the date and the time span to ensure the visibility of the coupon code within that time period and click on the Save Coupon button.