An Acknowledgment of Receipt (AOR) is an official letter that IRCC sends you confirming they have received your application and will start processing it. Aor is an official letter that the ircc sends you confirming they have received your application and will start processing it.An Acknowledgment of Receipt (AOR) serves as an official confirmation from IRCC that they have successfully received your application. Information is printed on the documents as what you have filled while completing the online Form on the Government Portal. Thank you for you interest in the University of Texas Health Science Center at Houston. Sincerely,. Name. Title. Enclosure. Check out our cash acknowledgement template selection for the very best in unique or custom, handmade pieces from our templates shops. When you donate to LCIF, you're helping Lions and Leos to make a greater impact in the communities they serve. The Concur Expense Report must indicate the number of travelers in the expense comments field. The online training requires each employee to acknowledge their responsibilities before completing the session. Premium Service For Premium Shippers.