A cargo manifest was a list of items that a ship was transporting.
In 2153, Ensign Travis Mayweather once discovered what he supposed to be a cargo manifest aboard an Osaarian vessel, which Captain Jonathan Archer ordered him to download to Enterprise. (ENT: "Anomaly")
During a simulation later that year, Archer accessed a cargo manifest aboard a simulated Malosian cargo shuttle. It showed that the shuttle's starboard tanks contained 500 liters of warp plasma. (ENT: "Stratagem")