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Power Platform Community / Forums / Power Automate / Sending Excel file - E...
Power Automate
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Sending Excel file - Error 403 response not in JSON format / cannot read server response

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Posted on by 48

Hey,

I've been using a straightforward flow each week to send an Excel file via Outlook to a few people.
However, I recently encountered a 403 error code stating "response is not in a JSON format."

 

Dark4499_1-1704183369077.png

 

Dark4499_0-1704183364700.png

 


Any thoughts on resolving this issue?
Thanks a lot!

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I have the same question (0)
  • v-yetonggu-msft Profile Picture
    Microsoft Employee on at

    Hi @Dark4499 ,

    Please show me a complete screenshot of your flow configuration.

     

    Best Regards,

    Sunshine Gu

  • Dark4499 Profile Picture
    48 on at

    Hi @v-yetonggu-msft 

    Pls find below.

    Dark4499_0-1704185608070.png


    And below a more detailed view of the "send an email" action.

    Dark4499_1-1704185640057.png

     

    Thanks.

  • v-yetonggu-msft Profile Picture
    Microsoft Employee on at

    Hi @Dark4499 ,

    Please check whether your 'Send an email' control connection is correct.

    vyetonggumsft_1-1704191607885.png

    Best Regards,

    Sunshine Gu

  • Dark4499 Profile Picture
    48 on at

    Hi @v-yetonggu-msft ,

    I successfully reconstructed the flow without encountering any issues.
    The connection is also fine.

    However, I'm contemplating two potential issues that might have contributed to the failure of the flow:

    1. The email is sent on behalf of another (group) mail address (and the group mail address has no access to Power Automate)

    2. During the flow execution, someone is editing the file.

     

    Just want to prevent a recurrence of this situation in the future.

    Thx

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