Online Booking · updated 2026-08-08

How to create promo codes for online booking in Dumpster Controls

Promo codes give customers a percentage or fixed-dollar discount at checkout on your booking page.

Before you start

1
Open the Promo Codes tab
In "Booking Page", select "Promo Codes". The "Create Promo Code" card reads "Offer discounts to attract customers."
2
Define the code
Enter a "Code" (for example SUMMER25; it is stored uppercase). Pick the "Discount Type": "% Percentage" or "$ Fixed Amount", then fill "Discount %" or "Discount Amount ($)".
3
Add optional limits
Set "Expiration (optional)" and "Usage Limit (optional)". Leave them empty for a code that never expires with unlimited uses.
4
Create and manage
Click "Create Code". The "Active Codes" table lists each code with its Discount, Expiration, and Status columns, plus a toggle to activate or deactivate and a delete button. The tooltip notes: "Codes are applied at checkout on your booking page."

What happens next

At checkout, customers enter the code under "Promo Code (optional)" and click "Apply". A valid code shows "Promo applied!" with the discount; the Order Summary adds a Promo line with the amount off.
You can pre-apply a code in the embedded widget with the data-promo attribute, or via a promo URL parameter on the booking link.

The code does not exist, is toggled off, or its usage limit has been reached. Check the "Active Codes" table.

The expiration date has passed. Create a new code or clear the expiration.

Still stuck? Talk to our team

Open a support ticket inside the app and our team will answer there.

The software is 100% free with unlimited orders. No credit card, no demo, no contract.