Payment failures can happen for several reasons. Understanding the cause helps you resolve the issue or guide customers through it.
Common causes
Verification not completed
Customers must complete a security step like BankID or 3D Secure. Skipping or failing that step declines the payment.
Card issues
An expired card, insufficient funds, or a block placed by the customer’s bank prevents the transaction.
Unsupported card type
Dintero supports most Visa and Mastercard products, but some international or business cards may be rejected.
Browser closed too early
Closing the browser before the redirect back to the store completes, which is common with Vipps or Swish, can prevent order confirmation even if the payment itself succeeded.
Temporary provider outage
Payment providers occasionally experience short outages. These typically resolve automatically.
Multiple checkout tabs
Opening checkout in multiple browser tabs at the same time can disrupt payment processing.
Payment method-specific issues
Digital wallets
Apple Pay, Google Pay, Vipps, Swish, and MobilePay can fail due to:
- An expired card linked to the wallet
- A temporary outage at the provider
- An incorrect phone number linked to the wallet account
Buy now, pay later
Klarna, Billie, and Walley may decline payments if:
- The customer does not pass the provider’s credit check
- Your merchant agreement with the provider is inactive
What to do if you’re unsure
Note the error message, payment method used, and the transaction or session ID. Contact Dintero support with these details so they can diagnose the failure. Last modified on June 18, 2026
