Re: Approval workflow for multiple files
Hi @Tea11
Thank you for posting.
According to your description, you would like to select multiple files from SharePoint and send them as attachments via approval. If any misunderstanding, please kindly let me know.
It’s possible if we use variable to store all filtered files and attach them to approval.
Flow overview:

Flow in details:
We need to use filter query to filter out the files you want to sent. From my example, I get the files which are modified in the last 90days.
Modified gt '@{addDays(utcNow(),-90)}'

Please pay attention to this part, we must select ‘filename with extension’ in name area. Otherwise, the file type will be changed and can't be opened anymore.
{
"Name":@{items('Apply_to_each')?['{FilenameWithExtension}']},
"Content":@{outputs('Get_file_content')?['body']}
}


After testing, I’m able to receive approval as below:


Hope the content above may help you.
Best regards,
Anna