How long does it take for a Check-In to process? COR January 19, 2021 16:24 Updated The COR may require up to 90 minutes to process a Check-In. Related articles Do you have a video tutorial for how to check-in? What is a Check-in? Have any tips for lancing my finger? How do I know when I have enough blood on my finger? What should I do with the cartridge cap? Comments 0 comments Please sign in to leave a comment.