Some embodiments provide systems and methods to assist product stocking on a sales floor of a retail shopping facility. In some implementations, a system comprises a plurality of motorized transport units that are each configured to perform multiple different types of tasks at a retail shopping facility; and a central computer system configured to coordinate the plurality of motorized transport units in performing the multiple different tasks comprising instruct a motorized transport unit to retrieve a specified stocking cart that is carrying a plurality of products that are to be restocked onto product supports that are positioned on the sales floor where customers travel in shopping for products, and further instruct the motorized transport unit to autonomously transport the stocking cart to a specified stocking location on the sales floor corresponding to at least one of the plurality of products carried by the stocking cart.