The present invention involves systems and methods of linking a unique identifier with a package identifier to provide confirmation of the delivery of the package to a certain location or individual. The unique identifier may be associated with a location or an individual. In one embodiment, it is a barcode and the package identifiers are barcodes as well. The barcodes are scanned by a service provider using a hand-held data acquisition and storage device thereby linking the unique identifier to the package identifiers. The information is transferred from the hand-held device to a database where it is used to compile reports for and provide information to the service provider, the shipper, and the recipient of the packages. The invention may be incorporated into an inventory management system such that when confirmation of actual delivery has been received, the recipient will release payment to its vendors.