Daily or monthly transaction authorization limits can be set for each employee cardholder. Card use can be limited to specific merchant categories, and companies may choose to block certain merchant catergories altogether.
Companies that issue cards to frequent travellers may choose to block all merchant categories that are not T&E related. Companies that have a per diem rate as part of their corporate travel policy can have a daily limit put on the card in order to ensure that cardholders are abiding by this policy.
Transaction authorization controls are established when the card is requested and the card is delivered with the controls already in place. The program administrator can easily change the restrictions as required to reflect changes in corporate policy or cardholder responsibility.