Power Platform Community Forum Thread Details

Hi @fishbicki ,

Where do you store the signature image for the new List Item? Within SP Library or add it as attachment of the List Item?

Do you want to update one column of the New Created List Item with created SP File Url?

If you store the signature image for the new List Item as attachment, Please consider take a try with the following workaround:

Set OnSuccess property of the Edit form to following:

Patch(
 'SP List',
 EditForm1.LastSubmit,
 {
 FileUrlColumn: First(EditForm1.LastSubmit.Attachments).AbsoluteUri
 }
);
Back()

Note: I assume you submit new List Item to your SP List using SubmitForm function

If you do not use Edit form to collect your entry, you could consider pass these entered value to a Power Automate flow. Within the flow, add a "Create Item" action of SP List to create new item in your SP List based on the passed name value. Then add a "Create file" action of SP List to create a file in your SP Library based on the passed signature image data (encoded base64). Then add a "Update Item" action of SP List to update the file url of the created signature image file to the specific column in your SP List.

The flow's configuration looks like below:

Within "Create file" action, File Content field set to following expression:

dataUriToBinary(outputs('SignatureContent'))

Within your app, create a connection to above flow, then you need to execute the following formula:

'Flow Name'.Run(
 NameTextInput.Text, // parameter value passed to flow for creating new item
 Substitute(JSON(PenInput1.Image, JSONFormat.IncludeBinaryData),"""","") // signature base64 encoded content needs to be passed to flow for creating image file in SP library
)

More details about firing a flow from a canvas app, please check the following video:

https://www.youtube.com/watch?v=1wl9AtxWdkg

More details about uploading image files from canvas app to SP library through Power Automate flow, please check the following videos:

https://www.youtube.com/watch?v=kQVYid1p_vA

https://www.youtube.com/watch?v=UYK7yruBHDM

Please take a try with above solution, check if the issue is solved.

Best regards,