Today Rudi is alone in his warehouse and he has to do the job that Manfred, the Parts Picker, normally performs. Norbert, the mechanic, shows up at the parts counter and asks for the parts to fix the brakes and replace the side-mirror of a customer. Rudi identifies the exact place where the items are stored and hands them over to Norbert. He ships them to the Service Order. Then the next mechanic arrives with similar requests. Inventory needs to be updated, and the Inventory Manager needs to ensure that new parts are ordered if the minimum threshold is hit, through the best possible vendor.