Overview
Payment methods are the foundation for automated billing. Fynn supports various payment methods:SEPA Direct Debit
Automatic debit via SEPA mandate. Supported by EBICS and Stripe.
Credit Card
Visa, Mastercard, American Express, and more. PCI-compliant via Stripe.
PayPal
Popular payment method for online purchases. One PayPal account per customer.
Bank Transfer
For manual payments. No automatic debit.
Add Payment Method
- Using Web App
- Send Link to Customer
- Using API
1
Open Customer Details
Navigate to Customers and select the customer for whom you want to add a payment method.Switch to the Master Data tab.
2
Add Payment Method
Click + Add in the Payment Methods section and select the desired type:
Capture SEPA Mandate
Capture SEPA Mandate
Capture a SEPA mandate directly in Fynn:
- IBAN: The customer’s bank details
- Account Holder: Name of the account holder
- Mandate Reference: Automatically generated or manually entered
- Signature Date: Date of mandate signature
The SEPA mandate is stored digitally and can be viewed at any time.
Stripe Payment Method
Stripe Payment Method
Credit cards and SEPA direct debits can be added via Stripe.The customer receives a secure link to enter their payment details.
Add PayPal
Add PayPal
Connect the customer’s PayPal account.
3
Set as Default
After adding, you can mark the payment method as Default.The default payment method is automatically used for new subscriptions and invoices.
Remove Payment Method
Remove Default Payment Method
If you remove the current default payment method, you must select a new default payment method:
1
Select New Default
Choose one of the remaining payment methods as the new default payment method.
2
Confirm
After selection, the new default payment method becomes active immediately.All subscriptions that use the “Customer’s Default Payment Method” will automatically use the new payment method.
Payment Method with Subscriptions
If subscriptions explicitly use this payment method, you must decide where to migrate the subscriptions:
Default Payment Method
Default Payment Method
The subscriptions will be switched to the customer’s default payment method.
Other Payment Method
Other Payment Method
The subscriptions will be switched to a specific other payment method.This remains permanently assigned until manually changed.
Change Default Payment Method
- Using Web App
- Using API
1
Open Master Data
Navigate to Customers -> Select customer -> Master Data tab.
2
Set as Default
Click on the radio button icon next to the desired payment method to mark it as default.

SEPA Mandates
View Mandate
For SEPA payment methods, you can view the stored mandate at any time:1
SEPA Mandate Badge
Click on the SEPA Mandate badge for the corresponding payment method.
2
Mandate Details
A popover shows all relevant information:
- Mandate reference
- Creditor ID
- IBAN (masked)
- Account holder
- Signature date
- Mandate type (One-time/Recurring)
SEPA Errors
For failed SEPA direct debits, the payment method is handled according to the error type:For deactivated payment methods, the customer automatically receives a notification with a link to add a new payment method.
Frequently Asked Questions
Can I restore a deleted payment method?
Can I restore a deleted payment method?
No, removed payment methods are deactivated and cannot be restored.The customer must add a new payment method.
What happens to ongoing subscriptions?
What happens to ongoing subscriptions?
When removing, you will be prompted to migrate the subscriptions to another payment method or to the default payment method.There is no interruption to billing.
How long is the payment method link valid?
How long is the payment method link valid?
Links for adding a payment method are valid for 7 days.After that, a new link must be created.
Can a customer have multiple payment methods?
Can a customer have multiple payment methods?
Yes, a customer can have any number of payment methods.Exception: Only one PayPal account is possible per customer.