The customer must be in possession of a container number + Bill of Lading number (B/L number) or container number + Call Reference Number (CRN). The CRN is a unique visit number for a ship to the port. Both combinations are valid for applying for a discharge confirmation. As soon as the container has been discharged at a terminal, the discharge confirmation is automatically received. In addition, a URL is needed to send the discharge confirmation to. In the connection process, this URL is used to establish an API connection with the ICT department/software supplier. The API link enables the automatic receipt and request of discharge confirmations.