Add Exclusion to MS365 retention policy

  1. Log in to https://compliance.microsoft.com with Global Admin account
  2. Go to Policies > Data > Retention
  3. Under Retention Policies, either Edit an existing policy or select  New retention policy
  4. Go through the edit/creation wizard until you get to this page
  5. Click Edit under the Excluded heading for the item type you would like to add an exclusion for
  6. Type in the full email address, site address etc and click Done
  7. Continue through the wizard until complete