Dear (Mr./Mrs./Miss/Ms.) followed by last name,
In the first one or two sentences, express your thanks for the goods or services received in a timely manner. Give your name, position and company, so that the recipient is clear on who is acknowledging their actions. This is important, as the recipient may offer goods, cash, or other services on a regular basis so you want to make it easy for them to determine where the letter came from.
In closing your letter, mention that your company is happy to be associated with a company of such high regard, and explain that you look forward to doing business with them at a future date. Thank the recipient once again.
Be sure to hand write your name above your typed signature. An acknowledgment letter can be used in many situations; they may be used in acknowledging receipt of a complaint letter, for college admission purposes, or even for a quotation request. The guidelines above will help you write a professional looking acknowledgement letter.