I created a workflow in Microsoft Flow that is triggered when a new item is added to a SharePoint list. This flow includes a "Send Email with Options" step that keeps failing with the following error:

BadRequest. The request failed. Response content: '{"status":400,"message":"No input parameters provided. Please provide required input parameters 'To', 'Subject', 'Body' and 'Options'.\r\nclientRequestId: b18047ba-5368-4e78-981b-b7025c027e81","source":"office365-cus.azconn-cus.p.azurewebsites.net"}'.

This is what that step looks like in the editor:

enter image description here

It only indicates the "To" field as being required. That dynamic content is triggerBody()['Approving_x0020_Manager']['Email'], which I know works because it is the same as in a prior step that succeeds. "Approving Manager" is a people-picker field in the form that a user fills out when adding a new item.

Also I have a prior step that sends an email (just the normal Send Email type) and that worked, so it must just have something to do with the specific "Send Email with Options"? I don't understand why this step is failing as it is.

2 Answers 2


I suppose that you are referring to this blog to send multiple attachments on a single email using flow.

You can check the Vytenis's comment in this blog. To fix this is instead of appending "Attachment Content" (or in my case "File Content") to the "ContentBytes" property of the array, you need to append the following expression: body('Get_attachment_content').$content.

enter image description here

Refer to this thread:


  • Wow....thank you for that, @JoannaW_MSFT! I can't believe how difficult Flow is to deal with.
    – Andy
    Nov 27, 2018 at 15:50


Yes,Error message is irrelevant and does not help to fix the issue. I have done the changes mentioned above and issue is fixed.

Please use below expression to get the file content:


enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.