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Microsoft Dynamics 365 | Integration, Dataverse...
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Authentication error with HTTP request trigger

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We have a sandbox environment that we recently created by copying our production enviornment.
In the new sandbox, we have several cloud flows are triggered by the step: What a HTTP Request is Received. This trigger generates a url that we are using to call the flowl.
We are using this url in the Ribbon Workbench solution from the XRM Toolkit.
When we click the ribbon button to call the flow, we are getting the following message:
The authentication credentials are not valid.
The trigger option for 'Who can trigger the flow?' is set to Anyone.
We have googled the issue, and out research seems to indicate that our SAS token is invalid or expired. We do not know how to verify this, or how to make the trigger work.
 
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  • Suggested answer
    Inogic Profile Picture
    641 on at
    Authentication error with HTTP request trigger
    Hi,
     
    The error occurs because the HTTP trigger URL contains a SAS token that's environment-specific. When copying the flow to Sandbox, a new URL is generated.
    To fix:
    1. Open the flow in Power Automate (Sandbox).
    2. Copy the new trigger URL after saving the flow.
    3. Update the Ribbon Workbench button with this new URL.
    4. Publish and test.
    Hope this Helps!
     
    Thanks!
    Inogic
  • Suggested answer
    Adis Profile Picture
    5,486 Super User 2025 Season 2 on at
    Authentication error with HTTP request trigger
    Hey,
     
    I am not 100% sure, but could be relevant:
     
    Post | Feed | LinkedIn - please also read the comments for further information.
     
    Basically, you need to deploy the flow again to PROD and the new urls should be triggered.
     

    Kind regards, Adis

     

    If this helped, please mark it as "Verified" for others facing the same issue

    Keep in mind that it is possible to mark more than one answer as verified

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