An Acknowledgement Of Receipt Letter is a formal letter written to acknowledge the receipt of goods or services, usually from another business. This letter provides evidence that a transaction has taken place and details what was received, along with any additional information needed. It is important to send an Acknowledgement Of Receipt Letter in order to ensure all parties involved understand the terms of the agreement and are on the same page. This acknowledgement also serves as an official record of the exchange and should be kept for future reference.