Campaign availability works on a first come, first serve basis. If you see a campaign you are interested in, we recommend applying for it immediately as it may fill up with applications by the time you check back as there is a pending queue and a limit to how many creators can apply.
However, if a brand does not find exactly what they’re looking for in the first round of applications, the application may reopen, but it is never guaranteed. Your best bet? Apply early and apply often.