Your challenge ends in one of two ways, hitting the max loss, or your 30-day window expiring before you meet the requirements.
What ends a challenge:
Your 30-day window expires before requirements are met
Your balance including open positions hits the max loss floor
What happens immediately:
All open positions are closed at their current market price
Trading stops, and the challenge is over
You receive a notification and an email with your results
Can I pick up where I left off?
No. When your challenge ends there's no way to continue from that point. You can buy a new challenge and start again whenever you're ready.