A method and device for transporting a plurality of objects, such as mail items. In a plurality of transport operations, at least one object is transported to a processing system in each case. For each object, two measurements are taken to determine which value is assumed by a predetermined feature for the object. The first measurement is taken before initiating the respective transport operation and the new or second measurement is taken after the transport operation is initiated. For each transport operation, transport operation information concerning which objects are transported together by the transport operation and which predetermined feature value of the objects measured at the time of the first measurement is determined and stored. For each object, a search is then conducted to determine in which transport operation the object was transported. In this case, a restriction is imposed on the search for at least one transport operation. In the process, for each transport operation it is determined for each case wherein at least n objects having the n measured feature values were placed together and transported into a particular transportation unit.