Abstract: A system comprising a computer-readable storage medium storing at least one program and a computer-implemented method for facilitating unified cross-channel advertisement are presented, including a method of generating a bidding value for an advertisement opportunity that is useable across a plurality of advertisement channels. In one embodiment, the method includes accessing an item data record cluster and an audience cluster, assigning the item data record cluster and audience cluster to a bidding value table, assigning a bidding unit to a combination of the item data record cluster and the audience cluster, the combination of the item data record cluster and the audience cluster being among a plurality of combinations of item data record clusters and audience clusters in the bidding value table, and generating a bidding value for the bidding unit, the bidding value including an amount of value to be paid for an advertisement opportunity for the bidding unit.