Customers routinely change their locations, and are not always sufficiently organized to tell their suppliers about the change of address. If so, the suppliers continue to send invoices to the old address, which are not always forwarded to the new address, or are at least delayed while being forwarded. The result can be delayed payments.
To avoid these payment delays, always stamp "Address Correction Requested" on the outside of all envelopes mailed. If a customer has notified the postal service of a forwarding address, the postal service will not only forward the envelope to the new address, but also notify the sender of the new address if this stamp is included on the envelope. The sender should have a procedure in place for routing these notifications from the mail room to the billing person responsible for updating the customer master file, so that new addresses are promptly reflected in new billings.