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Frequent Visitor

Approval with attachement array from email



Im trying o attach an attachments array in Approval. Im failing each time. Either the file is corrupted or is empty. I tried multiplie solutions from forums


1) Add multiple attachments to an approval email with Power Automate ( - empty or corrupted file

2) Solved: Re: Power Automate approval with Attachments - Power Platform Community ( - corrupted file

3)Solved: Attachment corruption on approval emails - Power Platform Community ( - corrupted file


i tried couple other of versions which combines all above and some other treads that i found. each time effect was the same - corrupted or empty file. 


i tried making attachments array directly from email attachments, i tried saving them on SP and on OneDrive.  


current attempt look like this - effect -> corrupted files. Files that are saved on OneDrive are fine, they open properly.


So you are my last hope - any ideas on how to make it run? Please help 😞


in case its important - All attachments are in PDF 


Accepted Solutions

@TeodorTeter - Yes, just use attachment content and do not wrap in the base64() expression.

View solution in original post

Frequent Visitor



This video has you covered -

Having reviewed your screenshot I would expect you need to remove the "" around the base64() expression... as the quotes tell PA that you are adding a string, and therefor it will try to re-encode the content, in affect base64 encoding a base64 string... thus a corrupt file.

Frequent Visitor

@Jay-Encodian  - it helped! however only while I'm saving the attachment on on OneDrive. and using advanced scenario 

"name": "file.docx",
"content": {
"$content-type": "application/octet-stream",


Is there any way to make it run directly from email attachments? 

@TeodorTeter - Yes, just use attachment content and do not wrap in the base64() expression.

Frequent Visitor

Thank you! 


Now it works as it should from beginning




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