Why is the promo code field greyed out on a trip?

The Promo button on a trip's Payments tab is disabled when a code can't be applied — the trip is paid in full, a code is already applied, the trip is deleted, or it has no items. What each reason means and what to do.

Written By Melanie Gannone (Super Administrator)

Updated at July 7th, 2026

On a trip's Payments tab, the Promo button is disabled when something about the trip means a code can't be applied. Hover over it and TripWorks shows the reason as a tooltip. There are four:

No balance due

The trip is paid in full. A promo code only reduces what a guest still owes, so with nothing left to charge there's nothing for it to act on.

What to do: If the guest should have gotten the discount, issue a partial refund for the discount amount instead.

A promo code is already applied

Only one promo code can be active on a trip at a time, so once one is applied the button locks to stop a second from stacking on top.

What to do: Remove the current code from the trip, then apply the new one.

The trip is deleted

No changes can be made to a deleted trip, including adding a promo code.

What to do: If it was deleted by mistake, restore the trip first. Otherwise there's nothing to do.

No items on the trip

The trip has no bookings or gift-card purchases attached, so there's nothing to discount.

What to do: Add a booking (or gift card) to the trip, then apply the code.

Don't see a Promo button at all? It's hidden for team members whose role doesn't include applying promo codes — an admin can grant that permission.

Frequently asked questions

Can I apply a second promo code on top of the first?

No — a trip takes one promo code at a time. Remove the current one first, then apply the other.

The trip's paid but I forgot the discount — what now?

Because there's no balance to reduce, apply the discount as a partial refund for that amount rather than a promo code.

The code is valid but still won't apply — is this the same thing?

Not quite. A greyed-out button is about the trip's state (paid, deleted, etc.). A code that's rejected after you try it is about the code's own rules — see promo code limits and usage rules.

Built for attractions, tours & activities

Discounts that just work

See how attractions, tours, and activities run promo codes cleanly across online, phone, and walk-up bookings on TripWorks. Book a demo and make the switch.

Can't find what you're looking for?

Our team is here to help. Reach out and we'll get back to you as soon as possible.

Contact us →