Feed conveyor for separating a flow of, in particular uniform, packaging units for use in a palletizer for palletizing the packaging units, having a separating conveyor which runs in a conveying direction and which has a receiving side for receiving a flow of, in particular uniform, packaging units and a discharge side for discharging the packaging units, wherein the separating conveyor has a separating device which is set up to divide the flow of packaging units arriving at the receiving side in a single receiving transport track, for example alternately, into two separating transport tracks (9.1, 9.2) flowing out at the discharge side, and having at least two aligning conveyors (10.1, 10.2) which are arranged next to one another downstream of the discharge side and which each have a rotating device (11.1, 11.2) or are designed as such to horizontally rotate a packaging unit transported on the respective aligning conveyor (10.1, 10.2), wherein the two separating transport tracks (9.1, 9.2) flowing out at the discharge side of the separating conveyor and generated by the separating device, on the one hand, and the rotating devices (11.1, 11.2), on the other hand, are aligned with respect to one another such that the transfer of the packaging units from the separating conveyor takes place in each case on a central transport axis (X, Y) of the rotating device (11.1, 11.2), characterized in that the separating device has a first and a second separating section in the conveying direction, wherein the separating device has, in the first separating section, a movable deflecting element for actively laterally deflecting the packaging units out of their transport position and has, in the second separating section, at least one guide element (15.1, 15.2) which in each case centrally delimits the separating transport tracks (9.1, 9.2) for passively laterally deflecting the packaging units out of their transport position, wherein the separating transport track (9.1, 9.2) is aligned towards the centre of the separating conveyor in the first separating section and is aligned towards a side edge of the separating conveyor in the second separating section. having a separating conveyor which runs in a conveying direction and which has a receiving side for receiving a flow of, in particular uniform, packaging units and a discharge side for discharging the packaging units, wherein the separating conveyor has a separating device which is set up to divide the flow of packaging units arriving at the receiving side in a single receiving transport track, for example alternately, into two separating transport tracks (9.1, 9.2) flowing out at the discharge side, and having at least two aligning conveyors (10.1, 10.2) which are arranged next to one another downstream of the discharge side and which each have a rotating device (11.1, 11.2) or are designed as such to horizontally rotate a packaging unit transported on the respective aligning conveyor (10.1, 10.2), wherein the two separating transport tracks (9.1, 9.2) flowing out at the discharge side of the separating conveyor and generated by the separating device, on the one hand, and the rotating devices (11.1, 11.2), on the other hand, are aligned with respect to one another such that the transfer of the packaging units from the separating conveyor takes place in each case on a central transport axis (X, Y) of the rotating device (11.1, 11.2), characterized in that the separating device has a first and a second separating section in the conveying direction, wherein the separating device has, in the first separating section, a movable deflecting element for actively laterally deflecting the packaging units out of their transport position and has, in the second separating section, at least one guide element (15.1, 15.2) which in each case centrally delimits the separating transport tracks (9.1, 9.2) for passively laterally deflecting the packaging units out of their transport position, wherein the separating transport track (9.1, 9.2) is aligned towards the centre of the separating conveyor in the first separating section and is aligned towards a side edge of the separating conveyor in the second separating section.