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Populate Word Template with an image: How to implement using dynamic files (dynamicFileSchema)

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Posted on by OheneSiaw

Hello All,

I am new to Power Automate. I am trying to establish a flow that automatically populates a word template with a digital signature using dynamicFileSchema after it has been filled and submitted via Approvals. I however get the error "

The image is not of type PNG or JPG." I have used a variable and I have also used the get File content from path but all to no avail. Your help will be very much appreciated. see attached images.

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SudeepGhatakNZ 14,396 Most Valuable Professional on at

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@OheneSiaw ,

Do you have an image control in your template?
OheneSiaw 25 on at

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Yes I do. That is the one with the ID "866801378" with the red rectangle.
OheneSiaw 25 on at

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@SudeepGhatakNZ Please do you have any solution to this problem?
SudeepGhatakNZ 14,396 Most Valuable Professional on at

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Can you try base64 conversion in your varSignature

{
"$content-type":"image/jpeg",
"$content":"base64(outputs('Get_file_content_using_path')?['body'])"
}
OheneSiaw 25 on at

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Hi @SudeepGhatakNZ ,
I have tried various options using the base64 conversion but it's still not working. I don't know if I am doing anything wrong. Please see the images below including the error message.
OheneSiaw 25 on at

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Hello @AlexEncodian ,

Thank you for your input. I have tried that but it gives me the error:
{
  "status": 400,
  "message": "The image is not of type PNG or JPG. Please provide an image of type PNG or JPG.\r\nclientRequestId: 10322991-d26f-4af2-8a86-75ee49fbed89",
  "error": {
    "message": "The image is not of type PNG or JPG. Please provide an image of type PNG or JPG."
  },
  "source": "wordonlinebusiness-sn.azconn-sn-001.p.azurewebsites.net"
}.

See image below:
AlexEncodian 4,409 Moderator on at

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@OheneSiaw

We can't see your input but can you attach the image?
OheneSiaw 25 on at

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@AlexEncodian

Please see input image attached.
SudeepGhatakNZ 14,396 Most Valuable Professional on at

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Okay I see the issue. You don't need the variable. You also don't require Base64 conversion. See the steps below
OheneSiaw 25 on at

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@SudeepGhatakNZ
Thank you for the suggestion but unfortunately, this does not fit my scenario.
You see, the template I am using is for a memo that will be used by different users and submitted for approval via the flow. As such, users will resave the template with different names depending on the inputs of the memo. With that said, I can't use this suggestion since the submitted templates will have different names although they will be saved to the same location on SharePoint. That is why I need to use the dynamicFileSchema option.