what does this admissions status mean?

Finally got into One start today… The email with my computing number was apparently lost. App showing as admitted with the stipulation I send in my final college transcript asap in May (I’m a transfer and didn’t have to send in HS or SAT).

Does this mean I am in barring major disaster or are they saying wait and see? Will I receive a letter in the mail since I applied online? I don’t want to be excited prematurely. Do I need to do anything now besides wait and do well in my remaining classes at junior college?