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If you get that, reauthorize as the correct user, then restart FlexDeploy, and then test again.and then test again. Similarly, if you authorized as one user and need to authorize as a different user in the same session, then make sure to sign out of Microsoft first. Otherwise, the first user’s credentials will automatically be used with the authorization instead of prompting you to login as the second user. You will see this error when testing the email configuration:
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