Can I exit and re-enter Thailand at the airport using different passports?

The user inquires about the possibility of exiting Thailand with a German passport and then immediately re-entering with a Thai passport, due to a name discrepancy and vaccination certificate issues. Responses from the community clarify that one cannot simply check out and re-enter from within the airport without departing the country. They also note the importance of having a Certificate of Entry (COE) linked to the original passport used for entry, indicating that it's necessary to travel to another country first before re-entering with a different passport.