The invention relates to a method for manufacturing multi-component aerosol forming articles, each aerosol forming article defining a longitudinal axis and comprising N components serially juxtaposed along the longitudinal axis, where N is an integer≥2, the method comprising: —providing transporting means for transporting components of aerosol forming articles in a transporting direction, said transporting means defining seats along said transporting direction; —supplying seats of said transporting means with a first component for each aerosol forming article by positioning said first components one after the other along the transporting direction with their longitudinal axis parallel one to the others; —checking each seat for the presence of said first component; —adjoining a second component to the first component in a lengthwise axial manner in a given seat only if the first component is present in said given seat.