Setting Employee Birth Date in SharePoint User Profile

Option 1: Employee enters their own birthday

  1. Click on your picture in SharePoint and select My Microsoft 365 profile

  2. Click Update your profile

  3. Click About

  4. Set your birthday and click Save changes

Option 2: SharePoint administrator enters birthdays manually

  1. Go to SharePoint Admin Center and log in as an administrator.
  2. In the left-hand menu, go to More Features → User Profiles.
  3. Click Manage User Profiles.
  4. Search for the user whose birthday you want to update.
  5. Click on their profile and edit properties.
  6. Look for the “Birthday” field (or similar property).
  7. Update the date and save the changes.

Option 3: SharePoint administrator uses PowerShell to update birthdays
(script not readily available)