Plan custom fields
Custom fields let you extend your plans with additional data that supports your unique pricing and marketing strategies. Whether you’re highlighting recommended plans, tracking promotional periods, or managing specialized plan attributes, custom fields give you the flexibility to tailor plans to your exact needs.
Understanding plan custom fields
Plan custom fields serve multiple purposes:
Tag specific plans for special treatment in your app
Store additional metadata about plans
Enable targeted plan recommendations
Each custom field you create becomes available across all plans in your app, letting you maintain consistent data structures while varying values between plans.
Creating custom fields
To add custom fields to your plans:
Navigate to Your App in the left menu
Select Plans
Click Custom fields in the sub-navigation
Hit Add custom field

When creating your field, you’ll configure:
Name: What you’ll call this field (e.g., “Recommended”)
Type: The kind of data it holds (text, number, checkbox, etc.)
Default value: What value new plans should start with
Description: Optional context about how the field should be used

Common use cases
Here are some popular ways to use plan custom fields:
Plan recommendations
Create a “Recommended” boolean field to highlight specific plans:
Set field name to “Recommended”
Choose checkbox type
Set default to false
Toggle true for plans you want to feature
Promotional tracking
Track special pricing periods with date fields:
Create “Promotion Start” and “Promotion End” date fields
Set dates on relevant plans
Use these in your app to show promotional pricing
Feature beta testing
Mark plans that include beta features:
Add a “Beta Features” checkbox field
Enable it for plans testing new capabilities
Use this to show beta badges or documentation
Using custom fields in your app
Once configured, your custom fields appear in plan settings:

Access these values through Mantle’s API to:
Customize plan displays
Power dynamic pricing pages
Drive promotional messaging
Support advanced pricing logic
Remember: Custom fields provide flexibility in how you present and manage plans, but they should be used thoughtfully to maintain clear pricing structures for your customers.