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    Nintex Knowledge Base

    Office 365 Workflow Actions Error 'Unable obtain security token, authentication failed.'

    Status: Validated

    When using the Office 365 workflow actions, the workflow instance suspends with the error: 'Unable obtain security token, authentication failed.'
    Unable obtain security token, authentication failed.
    • Verify that the account being used does not have Multi-Factor Authentication (MFA) enabled, as MFA is not currently supported by Nintex for Office 365
    • Verify that the action works with an account vs. an account. Success with an account vs a domain account will indicate an issue with ADFS. The Microsoft Remote Connectivity Analyzer can be used to investigate ADFS issues further. 
    Steps for testing with Microsoft Remote Connectivity Analyzer:
    1. Select Office 365 tab
    2. Under Office 365 General Tests select 'Office 365 Single Sign-On Test'
    3. Select 'Next'
    4. Fill in domain user credentials and the verification captcha
    5. Select 'Perform Test'
    6. Review results for ADFS errors
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