Product Add-ons

Product Add-ons is included with WooCommerce Appointments. Add fields to the booking form so customers can pick extras, extend duration, or provide information — with optional price and duration adjustments.

Before you begin

How it works

Add-ons appear on the appointable product booking form (and in the admin appointment panel create flow). Each field can adjust price, duration, or collect data only. Duration add-ons change which slots are available — the engine checks base duration + add-on duration.

What you need

• An appointable product
• Availability that covers extended durations when using duration add-ons

You are ready when

1. ✅ Add-on fields appear on the storefront booking form
2. ✅ Price and duration totals update when options are selected
3. ✅ A test booking with add-ons shows values on the order and appointment

Field types

Type	Use for
Dropdown / radio / images	Single choice; each option can have price and duration
Checkboxes	Multiple selections; per-option price and duration
Short / long text	Customer input; optional validation (letters, numbers, email)
File upload	Documents or photos
Customer defined price	Tips, donations — min/max limits
Quantity	Count-based options
Date picker	Related dates or deadlines
Heading	Visual separator (no input)

Product-level add-ons

1. Edit an appointable product → Add-ons tab
2. Click Add field and choose a type
3. Configure:
   • Title — label on the form
   • Title format — label, heading, or hide
   • Description — optional help text
   • Required — mandatory before booking
   • Options — for choice fields: label, price, duration per option

See Appointable product — Add-ons for common display options (Hide duration label, Show before appointment form, etc.).

Global add-ons

Reusable groups for multiple products:

1. Products → Add-ons → Add Group
2. Set Name, Priority, and Product Categories (or all)
3. Add fields (same types as product add-ons)

On each product's Add-ons tab, enable Use Global Add-Ons? to show global fields alongside product fields.

Pricing

When Adjust price is enabled:

Type	Calculation
Flat fee	Fixed amount
Quantity based	Price × quantity
Percentage based	Not available for appointable products

Prices display next to options on the storefront (can be hidden per field).

Duration add-ons

Duration add-ons are appointable products only.

1. Create a choice or checkbox field
2. Enable Adjust duration
3. Choose Flat time (fixed minutes) or Quantity based (minutes × quantity)
4. Enter minutes; optionally hide the duration label

The slot engine checks base + selected add-on duration. Multiple duration add-ons stack.

Example: 60-minute appointment + 15 min add-on + 30 min add-on = 105 minutes required availability.

tip

Test duration add-ons against your availability rules — long combinations need open slots for the full window.

Display and validation

Setting	Options
Title format	Label · heading · hide
Display as (multiple choice)	Dropdown · radio · images
Text restrictions	Any · letters · numbers · alphanumeric · email
Limits	Character length; quantity min/max; customer price min/max

Import and export

Export / Import on the product Add-ons tab uses JSON — copy add-ons between products or back up configurations.

Recurring packages

When recurring packages are enabled, each option can use Use once per recurring series:

• Price and duration apply once for the whole package, not per session
• Ideal for setup fees or one-time equipment on class packs

Best practices

1. Group related options with Heading fields
2. Show prices clearly on the storefront
3. Explain duration add-ons in option labels or descriptions
4. Use global add-ons for options shared across products
5. Test extended durations with real availability rules

Related

• Appointable product — attach add-ons to products
• Recurring packages — once-per-series pricing
• Customer booking process — how add-ons appear on the form
• Pricing rules — product-level pricing (separate from add-ons)