At a vendor-managed web site, purchasing information is received from a first terminal, including purchasing information that is customized for a customer. The customer includes first and second users having respective first and second levels of authorized access to the purchasing information. The first user is identified by a first identifier, and the second user is identified by a second identifier. To a second terminal, access at the vendor-managed web site is provided to: only a first portion of the purchasing information in response to receiving the first identifier from the second terminal which identifies the first user; and at least a second portion of the purchasing information in response to receiving the second identifier from the second terminal which identifies the second user. The second portion includes at least a part of the first portion and a third portion of the purchasing information. The part of the first portion includes at least a portion of the customized purchasing information.