Systems which allow code modifying should follow the requirements below.

• The back office should contain 3 tabs + 1 optional tab:
  1. Main Settings
     • Preferable to allow to Enable / Disable integration.
     • Mandatory to allow to enter Project ID. Preferable to have ID validator to allow numbers only.
     • Mandatory to allow to enter Project Sign.
     • Preferable to allow to enable Test mode.
  2. Extra Settings
     • Preferable to allow to enter the Title of the payment method.
     • Preferable to allow to enter the Description of the payment method.
     • Mandatory to allow to select to redirect to the Paysera or choose payment methods on the e-shop's website.
     • Mandatory to allow to select countries, if payment methods are displayed at the e-shop's website. Mandatory to allow selection of multiple countries.
     • Mandatory to allow to select a display method of payment methods (List view / Grid view).
  3. Order Status
     • Mandatory to allow to select the order status which is set before redirecting to the payment page (waiting for payment).
     • Mandatory to allow to select the order status which is set when the user comes back after the payment process is completed (waiting for payment approval).
     • Mandatory to allow to select the order status which is set after successful payment confirmation (paid).
     • All statuses must be predefined to a specific value. If there are no default values, statuses should be created during integration.
  4. Paysera project additions [optional]
     • Preferable to allow to Enable / Disable Paysera Quality sign on the website.
     • Preferable to allow to enter ownership code and Enable/Disable it in the meta fields.
• Mandatory to respond to the sent 'callback' with the required message after validation of the order.
• Preferable to process Callback using REQUEST, because we allow the customer to choose the method between POST and GET.

• Mandatory to display the title of the payment method.
• Mandatory to display Paysera logo next to the payment method.
• By default, payment country is selected by the client when filling in shipping/billing address fields.
• Mandatory to allow to select a country if payment methods are displayed on the website, so that it is possible to select a payment method from another country. If there is only 1 country selected, then there must be no selection of countries.
• Payment methods are displayed dynamically. See chapter "Displaying payment types".
• Mandatory to redirect to the payment page selected by the customer when choosing a payment method.
• Mandatory to return the Buyer to the Thank you page.

• Integration must follow the documentation of the system, so it would be possible to upload it to the marketplace.
• Mandatory to allow to install integration from the Admin panel.
• Integration must be ready for multilanguage use.
• Mandatory to provide clear instructions (Readme) on how to install integration and what are the requirements.

Some systems do not allow updating code, in this cases basic requirements could be followed:

• Preferable to allow to Enable / Disable integration.
• Mandatory to allow to enter Project ID. Preferable to have ID validator to allow numbers only.
• Mandatory to allow to enter Project Sign.
• Preferable to allow to enable Test mode.
• Mandatory to respond to the sent 'callback' with the required message after validation of the order.

• Mandatory to redirect to the Paysera payment page.
• Mandatory to return Buyer to the Thank you page.