If you're organization receives payments though the U.S. Mail, we can help you automate your workflow. Your organization or ours could generate invoices with barcodes that would identify each customer. Thereafter, when the payment was received, along with this bar-coded document, the transaction could be automatically indexed and archived as electronic images. Just think of how easy it would be to research a payment after these items were processed.
Similar rules could apply to Sales/Marketing feedback correspondence or any other type of material returned back through the U.S. Mail, originated from your organization. For sales/marketing material, after the retuned bar-coded documents were processed, you would have a database of parties interested in your products and/or services.