Host-to-Host interaction when paying bills

Some payment systems may support the Host-to-Host protocol.

If this option is available, then the response to the invoice processing request (/api/einvoice/process) will be h2h_allow field with value true and session identifier (h2h_session).

The h2h_data field may also be present in the response to the invoice processing request. The content of this field is individual for each currency. For a detailed description of the field, see below for a specific currency.

It is up to you to decide how to proceed with payment processing. You can continue the operation without Host-to-host.