Unable to add multiple emails ids for alerts
What alerts are you talking about? You'll need to provide for details as your description is vague. But generally you have either a , or ; between different email accounts.
Help Desk,
If you are referring to adding multiple emails to a email alert most likely you need to separate them with commas. Another way to add multiple emails is to us a Email Distribution list.
Regards,
-Adam Stephen
Loop1 Systems: SolarWinds Training and Professional Services