Clearly list the purpose of the receipt and include the name of the items or documents you're distributing and the date. In the "Name" section type your full name.Letter of acknowledgment provides proof that a receiver has received specific documents, goods, services, a specific type of request, an order, etc. If there is no signature, watch the signer sign the document. 4. Record the notarization. In Arizona, a notary acknowledgment form is required for many legal documents, including deeds, contracts, and wills. A donation receipt summarizes the financial details of a contribution, such as the donor's name, amount paid, and transaction date. If you receive a message that begins with "Please confirm the receipt of this mail," you will probably want to respond in the affirmative. How do you fill out an acknowledgment letter?