This article explains how to share attached files in AODocs document as Google Drive URLs. This feature is available only In Team Folders and Secured Folders.
Learn more: What are attached files?
The shareable link URL will always point to the attached file of the main version of your document, even if you check out your document.
Note: This feature isn't available from the AODocs user interface in Document Management libraries. However, you can construct the link of an attached file manually and share it.
1. Open an AODocs document in a Team Folder or Secured Folder.
2. In the More actions menu, select Shareable link. A message opens to confirm that the link is copied to your clipboard.
3. You can now share the link with other users.