Hi CZ!

This was the problem that I faced a few days ago. I was able to get around it by modifying this solution to fit Martin’s script:

https://stackoverflow.com/questions/48831263/how-to-attach-google-drive-file-with-sendmail-function-in-apps-script

On top of adding this, you’ll have to add a column named “Attachment” and to place all the filenames there. Make sure that all your filenames are unique though or else it’ll retrieve the same file for multiple emails.

Good Luck!