Automated document sync between SharePoint and Google Drive with Supabase

SharePoint → Supabase → Google Drive Sync Workflow

Overview This workflow is a multi-system document synchronization pipeline built in n8n, designed to automatically sync and back up files between Microsoft SharePoint, Supabase/Postgres, and Google Drive.

It runs on a scheduled trigger, compares SharePoint file metadata against your Supabase table, downloads new or updated files, uploads them to Google Drive, and marks records as completed — keeping your databases and storage systems perfectly in sync.

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Workflow Structure - Data Source: SharePoint REST API for recursive folder and file discovery. - Processing Layer: n8n logic for filtering, comparison, and metadata normalization. - Destination Systems: Supabase/Postgres for metadata, Google Drive for file backup.

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SharePoint Sync Flow (Frontend Flow)

- Trigger: Schedule Trigger Runs at fixed intervals (customizable) to start synchronization.