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Pay invoices with Mollie

Add a payment link to your invoice email and record a confirmed payment as a receipt.

Under Invoices you can connect Mollie using the administration’s own API key. Customers pay through a link in the invoice email. Once Mollie confirms payment, a receipt is posted to the selected Mollie account, reducing the outstanding invoice amount.

Step by step

  1. 1Open Mollie settings and select your existing Mollie account. If it does not exist yet, select Create a new Mollie account. Check the name, currency, ledger account number and start date; you can change the suggestions. Saving creates and connects the account. You will also find it under Bank.
  2. 2Open Invoices and choose Mollie settings. Enter your own API key, select the Mollie account and enable payment links. Leaving the key field empty when editing retains the existing key.
  3. 3Open a finalized invoice and choose Send. Select Add payment link if you want to include it. The link uses the current outstanding invoice amount.
  4. 4The customer opens the link and chooses Pay with Mollie. Viewing the page alone creates no payment. A confirmed payment is posted once, even if Mollie repeats its notification.
  5. 5If a payment has definitively been canceled, failed or expired, the customer can choose Pay with Mollie again. Once Mollie confirms that status, a new payment starts for the current outstanding amount. A payment that is still being processed is not replaced.
  6. 6An open payment uses the same checkout page. If it is unavailable, we first try to end the previous payment with Mollie, if Mollie allows this. A new payment starts only once that closure is confirmed. Otherwise the customer can try again later.
  7. 7Check the payment status in Mollie settings. Choose Check if a notification is missing. If creation is uncertain, first find the payment in Mollie and enter its Mollie payment ID there; do not blindly create another payment.
  8. 8Record a later Mollie payout to your bank as a transfer. Record withheld Mollie fees separately. This is not a second customer receipt against the same invoice.

What is on the screen?

  • Own API key: stored securely and never displayed again
  • Mollie account: the ordinary account receiving customer payments
  • Add payment link: a choice for each invoice email

What happens next?

A confirmed payment reduces the outstanding amount through an ordinary receipt. A test key creates recognizable test receipts in this administration, so use a test administration. If Received, processing required appears, check the message, for example a closed fiscal year or a missing currency conversion. Confirmed payments awaiting posting get no new payment requests or reminders. Refunds and chargebacks are shown for review. A deliberately deleted receipt is never reposted automatically. Disabling stops new payments; existing payments remain checkable.

Common situations

I see an errorRead the message by the field, correct the value and try again. Other details remain where possible.
I cannot continueCheck that all required fields are complete. If a link no longer works, request a new one.