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.
Check file versions before linking documents to review packets.
Your internal reviewer sees current packet files alongside the form answers, while your team can resolve missing files before sign-off.
Check contract packet versions and flag missing files for correction.
Your requester sees exactly which contract files are missing, while the approval stays in correction for follow-up.