Cancellation of order for internal reasons[1]

Cancellation of order for internal reasons [Date] [Name] [Address] Dear [Name] We very much regret that we must cancel order [number], dated [date] because [Reason]. We regret we must take this action but I trust you will appreciate our position at this moment in time. Please accept our apology for any inconvenience this cancellation may cause you. Yours Sincerely [Your Name] [Your Title]