What Are the Current Procedures for 90-Day Reporting in Thailand?

Yesterday i went to report 90 days and it was done easily due to less congested at the immigration office. I did asked the officer why i cannot get through the online reporting from the web, she told me there is time frame for us to submit (1-7 days) within 15 days before reporting due. I also not so clear about it but will try next time.

We also have resident notification done online and officer said next reporting need to screen shot the online reporting updates and print out as supporting document when doing 90 days reporting.

Just to share here for the benefit of others member.