- Subscribe to a PostFinance contract.
- Provide to PayZen the contract information : merchant ID and PSP ID (Payment Service Provider, for example PayZen).
- Needs a PostFinance account.
- Needs a card number and the ID number of his PostFinance Card when he pay with card.
- Needs the e-finance security elements for payment by PostFinance e-finance.
- Have a Card reader or a Mobile ID when amount exceeds EUR 350.- or when using e-finance payment method.