Pass file to child flow (email template)

Question

Currently I have two flows:

1. Email Template: accepts variables for text, subject, files (separate variables for SharePoint name & path)
2. "call flow": runs through list with emailadresses and names, passes these to child flow to send email

Now I'm running into problems when adding attachments. I used this guide (other guides suggest the same solution) to pass the file data in the template flow as attachment. The mail get's send properly including the attachment but the file is corrupt, much larger than the original file and can't be opened.

What am I doing wrong?

condition in child flow to check if file path is used and then generate the attachment array

Answer 1

Ok, I found the solution. It's only for max 1 attachment, but it works fine.

First I created the child flow which sends the email:

It has variables for email-adress, subject and text. In addition it has a file variable, which holds the filecontent and a text variable which will be used as the attachments filename.

Then I creates the "call" flow:

The SharePoint action is the one to get a file from path (I renamed it in the image), not the usual one. To pass it as valide content to the child flow, you need to write an expression like this

body('Lade_Datei').$content

and put it into the contentByte variable. The desired filename should be written in the extra generated variable field (in this case 'Dateiname' not 'Datiinhalt name').

Now when the email is send the attachment is not corrupted and works.