The present invention relates to an apparatus and a method for assembling a packaging combination including a tubular casing having a first end and a second end, wherein the tubular casing is partially filled with filling material and closed at its first as well as its second end by a closure means, like a closure clip, and wherein the partially filled tubular casing comprises a plait-like portion at its first end being at least approximately free of filling material, and further including a dispensing device having a passageway extending through the dispensing device with an inlet opening at its one end and a dispensing opening at its other end for guiding and dispensing the filling material in a dispensing direction. The present invention further relates to a packaging combination comprises a tubular casing, a dispensing device and a sealing device removably attached to the dispensing device.