Update for people who want to travel to Myanmar with their Birmese or Thai wife or girlfriend.
When staying in a hotel you now have to show in a form that has approval of your ampoo Amphur in Thailand that you are staying in a hotel..
We found out the hard way and my Birmese wife luckily has her Birmese ID card here in Burma so she got that from her mothers house and when showing it at the hotel lobby she could stay.
So,ask the Amphur in Thailand for a form that he or she is going to Myanmar and stay in a hotel.
TLDR : Answer Summary
Recent updates indicate that Burmese citizens traveling to Myanmar must present an approved form from the Amphur in Thailand when checking into a hotel in Myanmar. This became evident when a user found it necessary for their Burmese wife to provide her Burmese ID card upon arrival at the hotel. Furthermore, it was noted that Thai citizens may have different procedures for entry and hotel stays compared to other foreigners. The conversation highlighted confusion around the requirements for Burmese citizens and how they differ from those for Thais and other foreign nationals.