Hi @fern1
Transactional messages (email, Push, SMS) will take 1-2s to reach the end-users, why is time sensitivty important for your use cases,
Would these push notification requires action valid only for certain periods of time? Would they receive an acknowledgment type of communication, such as your use case ?
Again, transactional push might take 1-2s to reach the end users...
Thanks
Denis