Step 1 Notification Setup:

• Long Tap On Office Team App Logo. Then Click On  i  Button

  
• Click On Notification
  
  
• Allow Notifications, Ringtone & Vibration
  
  
• Go Back And Click On App Permission
  
  
• Allow Permission Which You Have To Use
  
  
• Go Back And Click on Battery Usage
  
  
• Click On Unrestricted Battery Usage
  
  

Step 2 Final Setup:

• Go To your phones local setting and search notification. Click On Send full-screen notification

• Click On Full Screen Alerts

• Allow full-screen notification to office team app