Question about specialization (EECE)

Hello po sa mga seniors from EECE! May questions lang po about sa specialization:

1. After filling up the form, what's next? Do you manually enroll in the specialization courses sa mymapua? (Di ko po makita sa curriculum)
2. What if you get rejected? What are the grounds?
3. Do specialization slots run out?

Also if anyone recently went through the specialization application process (especially if Microelectronics or Robotics), I'd appreciate it if you could share your experience. Thank you po!