What documents should I print for my 90-day report in Thailand, and how do I find the next report date?

The user successfully completed their 90-day immigration report first in person and then online. They received an email confirming that the online report was approved. They seek clarification on what document to print to attach to their passport and how to determine their next report date. A commenter advises accessing the immigration system to check the status of the approved report and using the 'next appointment' print function to obtain the necessary document containing the next report date.