Embodiments relate to a conveying storage device for containers, comprising: a first/second drivable conveyor which can convey containers on a first/second conveying surface in a first/second direction, the first and the second conveyor being positioned parallel to one another such that containers are transferable from the first to the second conveying surface; a transfer device, which is movable along the conveyor, for transferring containers from the first to the second conveying surface; a guide body which is movable along a region between the first and the second conveyor above the first and the second conveying surface; and a guide railing for guiding and separating containers, said guide rail extending at an angle to the second direction and above the second conveying surface. The guide railing is variable in length and cooperates with the guide body such that the length of the guide railing and the angle can be varied.