Is there is a function or a way for a spredsheet to automatically check for
an update on pending issue and if there is no update to display info message
that update is due on such and such issue?

I would like to create list of open issues. Each issue should be updated
every hour. After creating spredsheet and puting all info I would like to
program check when was a last update and if there are no update for the last
hour info. message will be displayed that this issue needs an update.

Thanks