Does an authorized user have to use the card to build credit history?

FAQ -Does an authorized user have to use the card to build credit history

An assigned authorized user does not have to use the card or make payments towards the bill in order to benefit from the history on the credit card. It is for this reason that most people allowing others to piggyback on their credit card face no risk. the card itself is mailed to the owner and the owner is then free to destroy the card.