It is mandatory for travelers traveling to Myanmar to have a passport valid for at least six months after your departure from Myanmar and a valid visa. Also, make sure you are not running out of blank visa page. You can apply for a conventional Myanmar visa at the nearest embassies and consulates, or it's straightforward to obtain electronic travel authorization (eVisa) online, which is suitable for entry to Myanmar.
An applicant must have a valid email address, a valid passport, and a credit or debit card, you can complete and submit online e-Visa application, and you will receive an email acknowledgment within an hour of successful payment. The visa will be valid for ninety days from the date of issue. You will get your passport stamped with the visa upon arrival. Whether you are traveling solo or in a group, you are eligible to apply for eVisa. The eVisa is suitable for entry from three international airports: Yangon, Mandalay, and Nay Pyi Taw and three land border crossing: Tachileik, Myawaddy, Kawthaung. The eVisa is useful for a maximum stay of 28 days.
For more information and to apply for a visa, visit the official website for Myanmar eVisa application.