Error Uploading image from Powerapps Gallery using Add Attachment action in flow

(1) Share

Report

Posted on by BG-25101928-0

I have a gallery in which there is AddMedia control and on change of AddMedia control using the below logic

ClearCollect(
colImages,
{
ItemID: Gallery.Selected.ID, // Link each image to an item ID in SharePoint
ImageFile: UploadedImage1.Image // Capture the image file from the gallery control
}
);

Then passing the Image to flow as below on powerapps button click as below:

  Animal_UploadImage.Run(
       Last(AnimalFightChild).ID,
        ThisRecord.UploadedImage1.Image , FileName
    )
);
 
Then creating as flow but it is erroring when using Add Attachment control even trying as
 base64ToBinary(triggerBody()['Base64ImageContent'])
 
datauritoBinary(triggerBody()['Base64ImageContent'])
 

Categories:

Power Automate

I have the same question (0)

All responses (1)

Answers (0)

Suggested answer

Inogic 1,277 Moderator on at

Like (0)

Report
Copy link

Link copied!

Hi,

I faced the same issue while passing image from PowerApps to Power Automate. The problem is that PowerApps sends the image as a data URI with quotes, and because of that dataUriToBinary() fails in the flow.

Here’s what worked for me:
In PowerApps, I used an Image control as an intermediate step (this is important), and then converted it using JSON:

Set(
imgData,
JSON(Image1.Image, JSONFormat.IncludeBinaryData)
);

'PowerAppV2->Compose'.Run(
"TestImage.jpg",
imgData
);

Notify("Uploaded Successfully ", NotificationType.Success);

In Power Automate, I added a Compose action and used this expression:
dataUriToBinary(replace(triggerBody()['FileContent'], '"', ''))

The key part is removing the quotes using replace(), otherwise the conversion fails.

After that, You can used the Compose output in Create File / Attachment and it will work perfectly.

Hope This helps!

Thanks!

Inogic

Was this reply helpful? Yes No