operation sequence/order
Before participating in the World Cup qualifiers, each national team needs to complete the following steps:
Registration: The national team needs to register with FIFA.
Determine the contestants: the national team needs to determine the list of contestants and submit it to FIFA within the specified time.
Participate in warm-up matches: The national team needs to participate in some warm-up matches in order to better prepare for the competition.
After completing the above steps, the national team can participate in the World Cup qualifiers.
Schedule
World Cup qualifiers are usually divided into several stages, and each stage has a different schedule.
First stage
The first stage is usually attended by the lower ranked national teams, who need to win enough victories in the group stage to enter the next stage.
stage Ⅱ
The second stage is usually attended by the national teams with higher rankings, and they need to win enough victories in the group stage to advance to the next stage.
Play overtime
If some national teams can't win enough in the first two stages, they may take part in the play-offs. In the play-offs, these national teams will compete with other failed national teams for the last few promotion places.