@katzuv @Emma03L I'm a little confused on how do we want to implement this. Could one of you clear it up?

There's a WPILib logging function which can be used. Find it

I assume you're talking about DataLogManager.log() and that was my plan But I also wanted a way for it to show up on the timeline in advantage scope and I'm not sure it can do that. If it can't we can log two things with the same button.
We could even have separate buttons that log different messages for different kinds of problems, though I'm not sure if it will be comfortable for the drivers.

You can see the log in the console tab, maybe as a discrete value in the line graph. You can also a boolean entry. But I think logging a message is the best way, it can be also color highlighted in the console tab.

I tested the code for the alerts, but you can't view the alerts in AD because for some reason they don't show up in the smartDashboard. I also tried to put just a random number in the smartDashboard but i still can't see it. I think this is a bug in the beta.
Strangely enough the autoChooser does work properly.
@katzuv what do you think?

I'd like to see the code but I think that the base branch in the PR is incorrect, too much diff
#74 (comment)

Also, note you can use OutlineViewer to see entries logged to NetworkTables, if that helps.
https://docs.wpilib.org/en/stable/docs/software/wpilib-tools/outlineviewer/index.html

I changed the base branch. Still doesn't show up in smartDashboard, I checked with outline viewer. @katzuv

You should be able to see the logs in the "messages" field:

https://docs.advantagescope.org/tab-reference/console

I am seeing the DataLogManager.log, What i can't see is the alerts.

#74 has no code related to alerts so I'm not sure what you expect to see.

Sorry, forgot to push the commit.

now I realize that if you want to see the alerts in AdvantageScope you probably won't see them because they aren't logged. However, they will be logged in the beta version of AdvantageKit so I would just wait for its release which should be soon.