This letter is to inform you of my one week notice of resignation from my position as Sales Coordinator with Company Name. The reason for such short notice is that I have been offered another job opportunity with a required start date of September 29, 2014. Therefore, my last day of work here will be Friday, September 26, 2014. Please consider this my official one week notice resignation letter.
I do apologize for any inconvenience this may cause your or my colleagues. However, I will do all that I can to ensure that my current projects are completed or assigned to capable co-workers for completion prior to my departure. Should you require any further assistance, I can be reached at 000-000-0000 or email@example.com.
My time here at Company Name has been an invaluable learning experience. I am in debt to all with whom I have worked and wish everyone at Company Name the greatest success in the future. Thank you so much for your attention to this matter.