If we use Box integration to store files - where are they stored Box or Asana ?
hello @Olivia_Forde, welcome at Asana Community.
I am not using Box, but if the Asana use the same pattern as with the rest of the attachments file options (Dropbox, Gdrive, OneDrive) the original file remains at the source provider and Asana is using only the link of the file. The files stored at Asana only in the case you attach a file using “Your Computer” option.
Hope I helped