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Error 406 NotAcceptable on Convert File Action

I am building a HTML file in Flow, saving it to OneDrive, and then converting it to PDF. There is something in some of the files I geneerate that is making the Convert File action fail.


I get:




This is a super-simple action, I can't see anything untoward in the HTML file as it renders fine I've run it through validation checks


Update... even if I enter something like <h1>hi there</h1> I still get the error. Is there a fault with this action?

same issue here 

was working well up untill 4 days ago.

since then all errors 

any idea ?

Regular Visitor

Same problem here, does not support convert EML, MSG to PDF anymore... this is bad news.  Only convert standard document type like .docx, .xlsx... 


I just open a case to microsoft, will see.

Not applicable

I'm also facing the same issue.


Unable to convert from html to pdf. It appears that it is OK if I use a docx .


Any help would be much appreciated.



Regular Visitor

I opened a case to microsoft, they told me they have a problem with a backend media service.  This is the last update I got this morning.  I will keep you posted as soon I got news.

Not applicable

Any updates ?


Is there a service status page or th elike that we can visit to see the issue and resolution ?





Frequent Visitor


I also opned a ticket to Microsoft, last update was (on Thursday) that they detect some issue in there system and will update us when fixed.

No update on our side yet , still getting the same error 

I'll see what I can find out on Monday. I am hoping it is resolved this week also as it is an extremely popular peice of functionality

Community Support
Community Support

Hi @paul_culmsee,


Could you please share a screenshot of your flow's configuration?


The error message told that you could not convert a html file into a PDF file. I have made a test on my side and the issue is confirmed on my side. Converting a HTML file into a PDF file is not supported in "Convert file" action of OneDrive connector. If you would like this feature to be added in Microsoft Flow, please submit an idea to Flow Ideas Forum:


If you want to convert a HTML file into a PDF file, please take a try with the following workaround:

  • Add a proper trigger, here I use Flow Button trigger.
  • Add a Conpose action, Inputs field set to following formula:
                             <td>Kris Dai</td>
                          <td>Email Address</td>
  • Add a "Create file" action, specify Folder Path, File Name field set to Profile.html, File Content field set to output of "Compose" action.
  • Add a "Get file content" action, File field set to Id dynamic content of "Create file" action.
  • Add a "Convert document" action of Muhimbi PDF connector, Source file name field set to DisplayName dynamic content of "Create file" action, Source file content field set to File content dynamic content of "Get file content" action, Output format field set to PDF.
  • Add a "Create file 2" action, specify Folder Path, File Name set to Profile.pdf, File Content field set to Processed file content dynamic content of "Convert document" action.

Image reference:14.JPG



The flow works successfully as below:16.JPG

The created HTML file within OneDrive opens well as below:17.JPG

The converted PDF file within OneDrive opens well as below:18.JPG



More details about Muhimbi PDF connector, please check the following article:

Muhimbi PDF Connector



Best regards,




Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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