Meaning
A subsequent action, message, or meeting to check progress or maintain communication.
Three examples from work
Email correspondence
Sales RepI sent a quick follow-up to check if they reviewed the proposal.
ManagerGreat, let me know if they ask for a pricing breakdown.
Post-incident action
DevOps LeadWhat is the follow-up on the database disk alert?
EngineerWe configured automated volume resizing yesterday.
Client meeting follow-up
PMI will send a follow-up email with the revised timeline by 5 PM.
ClientSounds good, we will confirm the milestone dates.