Systems, methods, and other embodiments associated with allocation of retail goods in a warehouse to warehouse transfer based on warehouse inventory data are described. In one embodiment, a method includes receiving a request for allocation of a quantity of an item sold in multiple types, where the quantity of items is to be transferred from a source warehouse to a destination warehouse. An allocation method is selected from a plurality of allocation methods. Each allocation method specifies a subset of warehouse inventory data to be used to generate allocation ratios. The method includes reading the subset warehouse inventory data specified by the selected allocation method; generating allocation ratios by determining a contribution of each of the multiple types to the subset of warehouse inventory data; and generating allocation quantities for each respective type in the multiple types by applying the respective allocation ratios to the quantity.