One of the wonderful things about an asynchronous method of communication like chat applications is that you don't have to wait for an acknowledgement to your greeting, should you feel inclined to send one. (Or, indeed, any other messages.)

If you feel that a "cold open" is too brusque, you can obey your inclination to politeness by sending a "hello" message, then following immediately with your request.

You 8:38:04 AM: Good morning Jane ⏎

You 8:38:06 AM: Do you have the URL for the 9:00 meeting?⏎

Sometimes, If my question is particularly wordy, I'll even type out the question first, cut it, type the greeting and send it, and then immediately paste and send the question.

One of the wonderful things about an asynchronous method of communication like chat applications is that you don't have to wait for an acknowledgement to your greeting, should you feel inclined to send one. (Or, indeed, any other messages.)

If you feel that a "cold open" is too brusque, you can obey your inclination to politeness by sending a "hello" message, then following immediately with your request.

You 8:38:04 AM: Good morning Jane ⏎

You 8:38:06 AM: Do you have the URL for the 9:00 meeting?⏎

Sometimes, If my question is particularly wordy, I'll even type out the question first, cut it, type the greeting and send it, and then immediately paste and send the question. I feel that this is both respectful of their time and of their humanity as something other than a resource to be interrogated.