Create a PayNow sandbox account

Set up a free PayNow test account and connect it to your store so you can try payments without real money.

A sandbox is a pretend version of PayNow. You can run test payments and no real money moves. It is free and needs no contract.

1. Create the account

  1. Open panel.sandbox.paynow.pl/auth/register.
  2. Fill in the registration form and submit it.
  3. Open the email PayNow sends you and click the link to activate your account.
  4. Log in at panel.sandbox.paynow.pl.

2. Copy your two keys

  1. In the PayNow sandbox panel go to Ustawienia → Sklepy i punkty płatności (Settings → Shops and payment points).
  2. Copy Klucz dostępu do API – this is your API key.
  3. Copy Klucz obliczania podpisu – this is your Signature key.

3. Paste the keys into your store

  1. In your store admin open Add-ons → PayNow.
  2. Open the Test (sandbox) tab.
  3. Paste the API key and the Signature key.
  4. Click Connect.
  5. Under At checkout turn on Show PayNow at checkout.

Done. While your store is in test mode, checkout uses the PayNow sandbox.

Optional: pick the payment method in your own checkout

By default shoppers are sent to PayNow's page, where they choose BLIK, a bank, a card or a wallet. PayNow calls the alternative level zero (or White Label): the choice happens on your checkout page and a BLIK code is typed there too, so a BLIK payment never leaves your store. Only one of the two modes is used at a time.

  1. In Add-ons → PayNow, under At checkout, turn on Pick the payment method in your checkout (level zero).
  2. Open your checkout. Under the payment methods you will see PayNow's data-processing clauses – PayNow requires them to be shown there.
  3. Email PayNow at support@paynow.pl with a link to your checkout and a screenshot of those clauses. mBank (PayNow's owner) reviews the page and enables the mode for your shop. Do this for the sandbox and the production shop separately.
  4. Until PayNow approves, the bank, card and wallet rows already work (they open PayNow's, the bank's or the card page), but a BLIK code typed on your page fails with an error. Meanwhile turn on BLIK: enter the code on PayNow's page under the same switches: the BLIK row then sends the shopper to PayNow to type the code, and no code field shows in your checkout. After approval, turn it off and the shopper confirms the BLIK payment in their bank app while your checkout waits.

Shoppers see one row per method, in this order: Pay with BLIK, Fast bank transfer, Pay by card, Digital wallets and PayPo – buy now, pay later. The first one is preselected. The selected row tells the shopper they will continue on the payment provider's page (or shows the BLIK code field) and that payments are handled by paynow.pl.

  • Fast bank transfer is a single row, not a list of banks: the shopper picks their bank on PayNow's page. That page also lists PayNow's other methods.
  • Digital wallets shows Google Pay everywhere and adds Apple Pay in Safari on Apple devices, where the shopper picks one of the two.

To change the order, drag the rows under Order of payment methods on the same add-on page – the change saves as you drop. Google Pay and Apple Pay move together as Digital wallets.

PayPo (buy now, pay later) shows as a row once you enable it in the PayNow panel. It needs the shopper's first and last name and a full address, which the checkout already collects.

Good to know

  • You do not need to set a notification address in PayNow. Your store sets it for you when you save.
  • Sandbox keys and production keys are different. Your store checks the keys when you connect – if you pasted production keys into the test tab (or the other way round), it tells you and offers to save them in the right place.
  • Before you start selling for real, open the Production tab, connect your production keys, make sure PayNow is switched on there, and switch your store to live mode. The sandbox tab and the production tab are switched on separately: PayNow working in test mode does not mean it will show at a live checkout. You don't need Stripe to go live when PayNow is your payment method.