What's the meaning of " keep us advised"?
I send an email to my friend and he responds saying "Appreciate you keeping us advised."
What the meaning of " keep us advised" is?

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Answer

hello .probably you have been advising. keep us advised means they appreciate that you do that again and again.

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He appreciates you keeping them informed, i.e., he appreciates you notifying them and letting them know what's going on.