Looking to resign with a One Month Notice Resignation Letter? Use our resignation letter template for notice-period roles.In this article, we discuss how to create a 30day resignation letter, why it's important and provide a template and examples to help you write your own. A resignation letter with a notice period is an official statement of your intent to leave your company after a specified length of time. I resigned from my job during the probation period and now HR told me to do a 90-day notice period. Is this right or is one month notice enough? It's time to quit the job, and you're not giving two weeks' notice. Here's how to politely write a resignation letter, effective immediately. After you have sent out the last rejection letter: 1) complete a Summary Search Report,. Noschese received a letter from Sarah Goldstein expressing her resignation and gratitude to the Task Force.