Note: In order for the web Portal to successfully lookup and find a card that you are searching for, the card needs to be registered with the system.
When a card is dispensed by the VAC, or simply placed on the VAC's card reader, the VAC will automatically read it and initialize it with the online system.
For example, if you pick a card from a new stack of cards and try to search for it, you will get no results as the online system does not know any about this card.
Placing this new card on the VAC reader, or dispensing a new card through the VAC, will initialize the card, and it will then become searchable via the web Portal.