[Your Name] [Your Address] [City, State, ZIP Code] [Email Address] [Phone Number] [Date] [Recipient's Name] [Recipient's Job Title] [Company Name] [Company Address] [City, State, ZIP Code] Dear [Recipient's Name], I hope this letter finds you well. I am writing to inform you about the cancellation of an unfilled order that was placed with your company. The order details are as follows: Order Number: [Order Number] Date of Order: [Order Date] Product/Service: [Product/Service Name] Quantity: [Quantity] Total Cost: [Total Cost] Unfortunately, due to unforeseen circumstances, we are unable to proceed with this order. We understand the inconvenience this may cause and sincerely apologize for any inconvenience caused. We value our business relationship with your company and hope that this cancellation will not hinder future collaboration. Furthermore, we kindly request that you promptly cancel this order within your system and update our account accordingly. If there are any outstanding payments related to this order that have already been processed, we kindly request a prompt refund to the original payment method. In order to avoid any confusion or misunderstandings, we request a written confirmation of the cancellation along with any relevant documentation. This will allow us to update our records accordingly and ensure a seamless transition. Should the circumstances change, and we decide to reinstate the order in the future, we will notify your company accordingly. At this time, however, we must cancel the order and request your cooperation in processing the cancellation as swiftly as possible. Thank you for your understanding and prompt attention to this matter. We appreciate your professional cooperation and hope to maintain a positive business relationship in the future. Please do not hesitate to reach out if you require any further information or assistance. We look forward to hearing from you soon. Sincerely, [Your Name]