A method for applying at least one RFID product tag to each of a plurality of products and to a product-containing container. Each product, case, or box is first unloaded from a container (e.g. pallet, tote, crate) or passed directly from manufacturing onto a conveyor whereon each item receives at least one RFID tag. Each RFID tag is then verified. Multiple items are then re-stacked in a container. An RFID tag is applied to the container and then the RFID tags are verified again before the container is shipped. Serialized numbers corresponding to products and containers are assigned and tracked. EPC data is stored on, or associated with, each RFID tag. RFID tags are verified to detect faulty placement and non-functionality. Non-functioning and poorly placed RFID tags are replaced before passing verification. The slap-and-ship line can handle execute-and-record methods and synchronized execution methods of handling product and associated data.