The invention relates to controlling and/or managing recycling and/or waste management work machines.According to an embodiment a method for managing work machines comprises receiving a first message at a receiving work machine from a sending work machine. Said first message comprising message fields, wherein at least one message field comprises information on machines already joined in the job. The method comprises forming at least one modified message field to include information of the receiving machine and its placement in relation to other machines already joined in the job. The method comprises transmitting said at least one modified message field from said receiving work machine to said sending work machine.