Method (400) and control arrangement (310) for adjusting a relative position between a conveyor (101) of a harvester (100) and a bucket (103) of a vehicle (102) in order to distribute material loaded by the harvester (100), via the conveyor (101), into the bucket (103). The method (400) comprises determining (401) a first longitudinal limit (110) of the bucket (103); determining (402) a second longitudinal limit (120) of the bucket (103); providing (405) material from the harvester (100), via the conveyor (101), to the bucket (103), at a longitudinal position between the determined (401) first longitudinal limit (110) and the determined (402) second longitudinal limit (120); and adjusting (407) the relative position between the conveyor (101) of the harvester (100) and the bucket (103) of the vehicle (102) within the determined (401) first longitudinal limit (110) and the determined (402) second longitudinal limit (120).