Upsell extras at the moment customers are already saying yes

Extras That Sell Themselves

Add-ons appear after a customer selects a service and time slot — when they're already committed. A yoga class customer sees a mat rental. A car rental customer sees GPS and child seat options. A spa booking customer sees an aromatherapy upgrade.

No separate services, no upsell email to send later. The extras show up exactly where they should.

How It Works in the Booking Flow

1. Customer picks a service and time slot — the standard booking step.

2. Add-ons appear — customers see available extras for that service, each with a title, description, image, and price. They select what they want and set quantities.

3. Cart shows everything — service price plus each add-on, with quantities and line totals. The customer pays the combined amount in one transaction.

4. Order and appointment record the add-ons — staff can see which extras were booked alongside each appointment, before the customer walks in.

Pricing Modes

Fixed add-ons — customer picks a quantity (optionally capped). A $20 deep-conditioning treatment, one per booking.

Duration-multiplied add-ons — quantity is set automatically to match the number of duration units booked. A GPS device at $5/day on a car rental: 3-day booking = $15, automatically. No manual math for the customer.

Configure Add-Ons in Minutes

Create an add-on — give it a name, price, description, and image. Set it to active.

Assign it to services — an add-on only appears when the customer books a service you've linked it to. A "scalp massage" add-on shows up on haircut services, not massage services.

Optionally scope by location or staff — if a product is only available at one location or with specific staff, restrict the add-on to match. If you don't restrict, the add-on is available everywhere.

Set quantity limits — optionally cap how many a customer can add. Four child seats maximum. Or leave it uncapped.

Tax Handling

Add-on tax follows your store's global tax settings automatically:

• Tax-inclusive stores — the displayed price already includes tax. Opencals calculates the tax portion.
• Tax-exclusive stores — tax is added on top at checkout.
• Non-taxable add-ons — mark an add-on as non-taxable for items like tips, donations, or tax-exempt accessories.

Prices are snapshotted at the time of booking, so later price changes never affect existing orders.

Refunds and Order Management

Add-on line items appear in every order — with quantity, unit price, tax, and totals.

Refund add-ons independently — refund the GPS rental without touching the base rental price. Partial quantity refunds are supported (refund 2 of 3 units).

Staff see add-ons on appointment view — before the appointment, after checkout, and in the order history. Staff can add, adjust, or remove add-ons from existing appointments directly from the dashboard.

Use Cases

Hair salon — deep conditioning, scalp massage, hair mask. Linked to coloring and cut services.

Fitness studio — yoga mat rental, resistance bands, towel service. Per class, optional quantity.

Car rental — child seat (fixed, one-time), GPS (duration-multiplied, per day), additional driver insurance (duration-multiplied).

Spa & wellness — aromatherapy upgrade (fixed), extended time (duration-multiplied per 30-min block), premium oils (fixed).

Photography session — extra edited photos package, rush delivery, print set. Fixed quantities.