Fellas, I am really sorry for the question, but I am new to Slushpool and have been browsing to find an option for hash rate alert (email or phone notification). I know it is possible as it is written in the Help article. I also read that you must switch on reporting first in Slush, but I can't seem to find how to. Any hint will be appreciated, in the mean time I continue googling.
Go to "settings" -- in the upper left quadrant, click on "Bitcoin" -- then click on "Monitoring".
You can also edit each worker to set your monitoring limits.
Thank you! Worked like a charm, appreciated.