Skype for Business shows toast alerts in several situations--like when someone adds you to their contacts list, or when someone initiates a conversation. The Skype for Business Options > Alerts page lets you decide when, where, and from whom you will see these alerts.
Want to be alerted when someone adds you to their contact list?
Under General alerts, select the Tell me when someone adds me to his or her contact list check box. Then, from the Display and Position fields, specify on which monitor and where you want this alerts to appear.
When you select this setting, and someone adds you as a contact to their contacts list, in addition to an alert, Skype for Business will add that person to a running list of people you might consider adding to your own contacts list. At your convenience, you can review this list by clicking the New tab on the contacts view of the Skype for Business main window. Look at the list of potential contacts, decide who to add to your own contacts list, and if you want, assign privacy relationships to those new contacts.
Don't want an alert when someone adds you as a contact? Want to automatically add people to your contact list if they've added you to theirs?
If you prefer, you can choose to automatically add to your contacts list anyone who has added you to their contacts list. If you choose this setting, you will never see contacts on the New list. And anyone who adds you to their list is automatically added to your contacts list and is assigned the privacy relationship of colleague.
Under General alerts, clear the Tell me when someone adds me to his or her contact list check box.
Sometimes you need to "close the door." Set the alert option for when your status is Do Not Disturb
If you are super busy, setting your status to Do Not Disturb can reduce the number of interruptions you get. But you may still want to keep in touch with important contacts. You can make exceptions for contacts to whom you’ve assigned the Workgroup relationship (typically your closest co-workers).
Under When my status is Do Not Disturb, select one of the following options:
Click Don’t show alerts to hide all Skype for Business alerts so that you cannot be interrupted.
Click Show only conversation alerts from people in my Workgroup privacy relationship to see only conversation requests from Workgroup members and hide all other alerts.
Click Show all alerts, but only conversation alerts from people in my Workgroup privacy relationship to see all alerts, but limit conversation requests to those sent by Workgroup members.
You can also set alert options for contacts who don't use Skype for Business
Skype for Business supports having Skype users as contacts (when the Skype user is signed in with their Microsoft account), if your company is configured to support external contacts. For details, contact your workplace technical support.
To be alerted to all, some, or no Skype for Business communications from Skype contacts, select the appropriate option under Contacts not using Skype for Business.