Is that any way to get a new message for a userId for multiple channels?

Hi, i am using web (javascript), in my app there is a user added to multiple channels,
I want to get a new message alert using a userID.

suppose userId is 123456789 and this is added to n number of channels(ch1, ch2 … chn) now when a new message is added to ch2 by another userID (98562541) then how can i get this new message for userId 123456789.

Hello @vibhorMaheshwari, thank you for your inquiry.
However, it’s impossible to get messages from multiple channels by userID.