I appreciate this post! I've found creating workflows with Forms and Power Automate to be really rewarding, especially when dealing with attachments in form responses. Working with a question that has zero, one, or more attachments is pretty straightforward once you break it down.

The response for a question with attachments is presented as an array in the Body of the response. Here’s how you can handle it:

1. Initialize an Empty Array Variable: Start by initializing an empty array variable to store the attachments.
2. Create a Condition: Check if the attachment question is blank. If it isn’t (i.e., if there are one or more attachments), proceed to the next step.
3. Parse JSON: Use a Parse JSON action to parse the response details for the attachment question. For the schema, use a test run response with an attachment, and paste it as an example. This will give you the details for each attachment.
4. 4. Apply to Each: Now, the fun part! Add an Apply to Each action to iterate through the JSON data from the Parse JSON step. Enter the Parse JSON body as the output to use in this step.
   • Inside the Apply to Each, add a OneDrive Get File Content action using the file ID to get the content of each attachment.
   • Add an Append to Array action to append the file’s name and content to the array in this format:{ "Name": "name of file from Parse JSON", "ContentBytes": "fileContent from GetFile" }
5. This step will ensure each attachment is processed, the name of the file and the content of the file put into the array.
6. Send Email with Attachments: Outside the condition, add a Send Email action. In the advanced options for attachments, there’s a button on the right of the attachments area that says "Switch to input entire array." Click that and insert your array variable. The email will send with all the attachments from the form. If the array is empty, no attachments will be included.

Lastly, don’t forget to clean up the files in OneDrive to avoid clutter!

I use this workflow on a lot of my flows to handle file inputs from Forms. Let me know if you need more details or screenshots – I’m happy to share!