I looked everywhere on the internet and but no one seems to know how.
I want to include the attached receipts to a approval mail/flow. If I select one image it comes in the attachments, but when trying to add a collection or varbase64 it wont work. I have seen some videos about multiple attachments but those scenarios are when the files/attachments are all in one list. When I use the get content/get attachments scenario the files are not included there (because the images are stored in a list called "expenses receipts" and not in the "expenses" list. Because we have 2 lists and images that have the same receipt item name it's impossible for me to figure out how to do it.
This is list a

and this is list b

I tried this methode as well:

But the item is on one list and the receipts are on another one, I can not get the content with this solution.
This is the submit screen with explanations:

This is the command that works (with one image only):
Approval-flow-ReceiptsV2'.Run(BrowseGallery1.Selected.Id,MyManager.Mail,Gallery2.Selected.Receipt.Full,Gallery2.Selected.'File name with extension')
I create apps for non profit purposes and would love if you could help me on this issue.