How to assign Delegate Access to Microsoft365

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Written by Support InfoBridge


This KB Article shows how to add Delegate Access Full Access Permissions to the SyncUser mailbox.

How to

  • Log into Microsoft 365 as an Admin user. You should be working in a minimalistic blue & white theme.
  • From the menu bar, click on the logged in user name and select Exchange.
  • In the left column navigation pane, select Recipients.
  • In the list of mailboxes, select the target user to grant Delegate access for and click the Pencil icon at the top of the mailbox list (or double-click the mailbox user).

  • In the User mailbox window, select Mailbox Delegation.
  • In the Full Access section, click "+" above DISPLAY NAME.
  • In the Select Full Access window, select the mailbox to grant access to (the SyncUser mailbox), click the "add ->" button and click the OK button.

  • In the User Mailbox window, click the Save button.
  • Repeat steps for each target user that the Synchronizer will sync data for.