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MMM-MicrosoftToDo - invalid_grant

  • Hi!
    I’ve installed the “MMM-MicrosoftToDo” module following the instructions provided.

    Entered the relevant details in the config.js

    And I get no tasks just a message saying:
    “[] Error occurred invalid_grant. Check logs.”

    Anybody any idea what this means ?
    Or where log files are ?

    Thanks in advance

  • Had the same issue my solution was to go back and regenerate a new Auth Code and subsequent new Refresh Token.
    I remember a logfile stating this has expired.
    My take is:

    • Client ID is permanent
    • Client Secret is permanent
    • Auth Code expires
    • Refresh token will not work if the included Auth Code has expired

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