Accept payments with SumUp

SumUp is an online payment solution with no subscription or commitment, widely used by organizations and local businesses. Your users pay by bank card, Apple Pay or Google Pay on a secure payment page, and the funds are transferred to your bank account.

SumUp


Requirements

A SumUp business account in your organization's name (to be created if you don't have one yet).


Connecting your SumUp account

  1. Go to AdministrationSettingsBillingBilling Accounts, open the relevant billing account and go to the Payments tab.
  2. Enable Online Payments and select SumUp from the list of gateways. If you don't have an account yet, click Create a SumUp account.
  3. Click Save: the connection button then appears on the page.
  4. Click Connect my SumUp account. A new tab opens on a secure SumUp page where you can sign in and authorize the connection.
  5. Back on this page, the account appears as connected. Use Test the connection to check that everything works.

An Online Help link directly in the form details the pricing and the connection steps.

Preferably issue your refunds from the order record. A refund made from your SumUp area is also taken into account, with a delay of up to 15 minutes.

Understanding the payment from the user's side

When paying, the user chooses Online Payment and is then redirected to a secure SumUp payment page. Bank card, Apple Pay and Google Pay are offered there automatically depending on their device, with no additional setting on your side.


Accept payments with a POS terminal

SumUp also offers physical POS terminals to take payments directly at the counter, in particular from the AdministrationDashboardBillingCash Register. Only SumUp Solo terminals can be linked: the brand's other models don't have the remote pairing feature required.

  1. Go to AdministrationSettingsBillingBilling Accounts, open the relevant billing account and go to the Payments tab.
  2. Enable the POS terminal section.
  3. Click Connect my SumUp account to link your terminals to your SumUp account.
  4. On the terminal, connect to a Wi-Fi network, then open its settings and go to the Connections → API menu: a pairing code appears on the screen.
  5. Return to your billing account, click Add a terminal, give it a name (for example "Reception") and enter the code shown on the terminal.
The pairing code is only valid for 5 minutes. If it has expired, display a new one from the terminal and start the addition again.
The terminal is independent from online payment: you can enable it without enabling Online Payments, or alongside an online payment gateway other than SumUp. If SumUp is already your online payment gateway, its connection is automatically reused for the terminal.

Once a terminal is paired, choose the CB on site mode when taking a payment (cash register or order detail): the list of available terminals appears, and the payment is sent directly to it.


Refunding a payment

The refund is started from AdministrationDashboardBillingInvoices & Transactions: open the relevant order and choose the refund, full or partial.

Two things then happen: your order is updated, and a call is sent to SumUp to actually refund the payer.

The update depends on the amount. A full refund removes the deliverables — credits returned, subscription revoked — and sets the order to "refunded". A partial refund leaves the deliverables in place and the order paid: it only records a negative entry that reduces the amount collected.

Refunding from SumUp rather than from here

You can just as easily start the refund from the SumUp back office. SumUp then informs us automatically, and your order is updated as if you had gone through BalleJaune: status, credit note, deliverables.

Both paths lead to the same result. Take whichever suits you — but only one of the two.

If the gateway doesn't respond

A refund started from BalleJaune happens in two independent stages, and the second may fail even though the first succeeded: your order is set to refunded, but the money remains collected at SumUp.

A message then tells you so explicitly and invites you to complete the operation from the SumUp back office. This is the only case where you need to act on both sides.

Apart from this case, never refund on both sides: the payer would be credited twice. We detect the situation and alert you, but we cannot cancel it — the money has already gone.
Updated on Saturday, August 8, 2026