Google Drive is Google's file sync app that lets you store all of your files online alongside your Google Docs documents, and keep them synced with all of your devices.
List missing supplier contract files on the original approval request.
Your requester sees exactly which contract files are missing, while the approval stays in correction for follow-up.
Keep signed supplier agreements separate from unsigned drafts.
Your supplier folders show the signed agreement with its audit pages, while the unsigned draft stays close by in drafts.
File signed supplier agreements and the matching signing logs.
Your signed agreements and signing logs land together in the restricted folder you choose, and the owner gets links to both PDFs.