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Fynn is a platform for billing your business. Sell products, create customized subscriptions, automate invoices, and manage payments effortlessly. Keep track of your customers, optimize sales, and use our powerful API to create and extend your custom applications. With us, individual subscription terms and models become a breeze.

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Let’s get started

Set up organization

Set up your organization and add your team.

Customers

Create and manage your customers.

Subscriptions

Create and manage subscriptions.

Invoices

Create and manage invoices, credit notes, and cancellations.

Payments

Manage payments and payment methods.

Offers

Create and manage offers.

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Next steps

Checkout

Sell subscriptions and products with our checkout.

Coupons & Discounts

Create and manage coupons and discounts.

Payment failures

Configure payment failures and reminders.

Accounting

Configure accounting settings and integrations.

Notifications

Configure notifications and emails.

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Developers

Webhooks

Configure webhooks and receive notifications.

API Reference

Explore our API reference.