This page contains Acknowledgment clauses in business contracts and legal agreements. We have organized these clauses into groups of similarly worded clauses.Learn what an acknowledgement receipt is and how to create one for your business (with a template and two examples). Acknowledgment letters. We'll show you how with 5 acknowledgment email reply samples and a completely customizable template. Explore the importance of acknowledgment letters in professional communication. Use our free template to acknowledge the receipt of emails, calls, or letters. In this article, we offer some tips and examples to help you write a great thankyou letter to your manager. What do you need to include in your donation acknowledgment letter? Learn how to write an Acknowledgement Letter with this informative guide.