as far as i understand the Thai immigration procedure, it means the following:
- They reviewed your document and decided that you supplied the requested documents
- They forwarded it now to someone higher that is eligible to approve/decline your request
- This person still can decline, ask for more documents, ask you to come to an interview or just approve it. It is his call, depending on your documents, and on him.
From your side, wait for a response. It might take a few days (mine took a week from this moment). And stay in the country as
@James *******
said, they might call you to an interview.