Source tagging is applying labels to product at the “source” such as a manufacturing facility. Many companies who Source Tag use Service Bureaus to print the needed labels and ship them to the location applying the labels. On-Demand tagging is tagging product upon receipt of goods. Many companies who use the On-Demand Tagging approach use suppliers instead of manufacturing their own items. Due to the many suppliers and shorter lead time these retailers lack the sufficient lead-time to use a Service Bureau and therefore must print and apply their tags when items arrive.