A system may transport a first set of mobile storage units from a storage area to an active picking bay of a robotic picking station, the robotic picking station including a robotic arm, the active picking bay being within a range of motion of the robotic arm. A system may transport a carton to the robotic picking station, for example, using one or more conveyors. A system may instruct the robotic arm to move a first item from the first set of mobile storage units into the carton. A system may transport the carton out of the robotic picking station.