Every sign up bonus has one trigger event, and it is set before the account exists. Missing the trigger step usually means losing the offer for good.
Three triggers are common. Registration-only offers credit a small bonus after identity checks. Deposit-triggered offers activate on the first payment. Bet-triggered offers wait until the first qualifying wager settles.
The trigger decides the order of actions. A bet-triggered offer lost on the first bet still pays out. A deposit offer needs opt-in before the money lands, not after.