Minimum Life Span
A young position cannot be closed for a profit; a loss always can
The prop rulesIntermediate
If your plan sets a minimum position lifespan, closing a position that has not reached that age yet is blocked while it is in profit. The rule only catches profitable closes: losses, break-even, liquidations and closes on an already-breached account always go through.
The point is to remove few-second scalps, and like the other order-time rules it does not breach the account — it just rejects that one close.