How do I apply a promo code at cart checkout?
Apply a promo code during cart checkout for sauna and cold plunge bookings and store lines—not on membership subscription charges.
Guests enter a promo code on the cart checkout screen before they pay for sauna and cold plunge sessions or store items. Membership subscription charges reject cart promo codes, so membership promos need a different path than booking or retail checkout.
What Zettlor does today
Promo codes apply to the Zettlor cart and booking checkout. You create codes under Store → Promos. Checkout rejects a promo when the cart includes a membership subscription. Redemption records after payment succeeds.
This behavior is live in Zettlor today for a commercial sauna and cold plunge room. Guest booking, cancel, and credit self-serve steps stay on Help. This page is for operators.
Desk path
Create or verify the code at Store → Promos. Tell guests to enter it on the cart checkout screen before payment. If a code fails, check date windows, product eligibility, and whether the cart includes membership subscription lines.
Do not invent a settings path beyond what is listed here. If the product does not include a control, the desk workaround is the path.
Failure mode
Operators expect one promo to discount everything—including membership signup—but cart checkout blocks membership promos and mixed membership carts. Codes copied from a legacy scheduler also fail until you recreate them as Zettlor promo codes.
Operator example
At Rytual, a guest applies SAUNA15 on a cold plunge pack in cart checkout and sees the discount before paying. The same code errors if they add a membership subscription line to that cart.
A sauna and cold plunge operator can copy the shape of this example without copying another brand's private pricing or customer lists.
How to do this
- Open Store → Promos and confirm the code is active, dated correctly, and scoped to the right products.
- Send the guest to cart checkout for the sauna and cold plunge session or store item—not membership signup if the promo is cart-only.
- Have the guest enter the code in the promo field before payment and confirm the discounted total before they submit.
Related questions
Can I use the same promo on membership and a session?
No. Checkout rejects a promo when the cart includes a membership subscription. Run membership discounts on the membership product, not the cart promo field.
Where do staff create promo codes?
Go to Store → Promos. Codes you create there apply to the Zettlor cart and booking checkout after validation.
Follow-up guides
Book a demo or get started.
Zettlor is booking and operations software for commercial sauna, cold plunge, and wellness facilities. See how it works.