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Discount codes let you offer reductions at checkout — for promotions, launches, or specific customer segments. Customers enter the code at checkout and the price adjusts automatically.
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How It Works

1

Create a code

Set up a discount code in your dashboard with a type, value, and optional limits.
2

Share it

Send the code to customers via email, Discord, social media, or anywhere else.
3

Customer applies it

The customer enters the code at checkout.
4

Discount applied

Suby adjusts the amount charged automatically.

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Creating a Discount Code

1

Go to Discounts

Navigate to Growth → Discounts in your dashboard and click Create code.
2

Configure your code

Set the code string (e.g. LAUNCH50), discount type, value, and optionally a usage limit and expiry date.
3

Save and share

Your code is active immediately.

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Discount Types

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Limitations

Discount codes apply to the checkout total after tax calculation. Codes are case-insensitive at checkout. A usage limit of 1 makes a code single-use.

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Via API

You can also create discount codes programmatically with POST /api/discount/create — set a PERCENT or FIXED type, target "all" products or a specific list, and optionally cap usage (maxUses) or set an expiry (expiresAt). Codes can be applied two ways:
  • Customer enters it at checkout — the price adjusts automatically.
  • Pre-applied by you — pass the code in the discountCode field on POST /api/payment/create or POST /api/subscription/create, and it’s applied to the checkout without the customer typing anything. It’s silently ignored if the code is invalid, expired, exhausted, or not attached to that product.

Full API Reference

Endpoints, parameters, and response objects for Discounts.