In the URL to be specified, a number of data can be automatically filled in. This is done through { } field indicators. The following fields are currently available:
Parameter {ZipCode} becomes postal code
Parameter {CountryCode} becomes country code
Parameter {Barcode} becomes track & trace barcode
Example URL for PostNL will be:
https://mijnpakket.postnl.nl/Claim?barcode={Barcode}&postalcode={ZipCode}&Foreign=false#
RetailVista fills in the package's postal code at {0} and the track and trace code received from the track & trace provider at {1}. The URL of PostNL (and other package services) is subject to change, but can be easily modified in this way.