Just what can you do with a CAN?

Hands up who has heard of the Contract Award Notice (shortened to CAN for those with a particular love for procurement and tendering jargon like us)? If you have heard of it, then you will know that the CAN is the official notification which must be published in OJEU by the contracting authority AFTER the contract has been awarded. It details the name of the winning bidder, duration of the contract and the value (if the authority has played ball and included that).