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User Cannot Connect

When a user cannot connect Exchange, first determine whether the issue affects Microsoft 365 or Exchange Server.

Microsoft 365

The normal connection procedure, Connected status and renewal of expired access are described in Connecting a Microsoft 365 User.

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If Exchange synchronization requires your attention appears with Exchange access expired, use Renew access. Do not reconfigure the global connector as the first action.

If Connect or Renew access does not complete the connection, check the Microsoft account used, the vtenext session and the Office365 configuration. For Proxy/Custom App parameters, see Configuring Microsoft 365.

Exchange Server

If the Exchange Server user test fails, verify Exchange Username, Exchange Password, Mail Server, Exchange server reachability and any Resource/Impersonation permissions. See Configuring an Exchange Server User.

An HTTP 401 error normally means that the server did not accept the credentials.

After correcting the issue

  1. Save the configuration or user profile.
  2. Repeat the connection or credential test.
  3. Verify selected folders.
  4. Create one test record.
  5. Check synchronization in both directions.
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