Can I start paying before my trial ends?

Open billing settings and choose Start paying now (it also appears on the Sales page during a trial). It charges your card today, converts the subscription to paid, and unlocks selling the moment the charge clears. It is not a cancellation, it is the same subscription, you just forgo the remaining trial days.

If that first charge fails, you are not charged and the workspace drops to Free, there is no grace for a payment that never cleared. Update your card and try again.

See free trial for the full conversion behavior.