Checks for a duplicate before filing anything: the same document at the same site is
archived, and a PO number already in the system is tagged PO Duplicate for a human
instead of being filed twice. Successfully filed mail is tagged PO Ingested and moved
out of the inbox; PO Needs Review and PO Duplicate stay in the inbox for review and are
skipped on later runs.
Rebuilds the PO email intake on n8n's native Microsoft Outlook node so the mailbox
can be connected with a single sign-in instead of an Azure app registration, and
documents reading the same mailbox from Mail.app via AppleScript for one-off
backfills. Records the real-world site-matching gap: the site often appears only
inside the PDF, not in the email.
Polls ai@megainfra.co.za through Microsoft Graph, downloads the PO attachment and
writes it into the same purchase_orders pending queue the browser upload uses, so
the existing MEGA - Purchase Order Ingest workflow OCRs and finalises it. The
source email is archived once filed; POs that cannot be matched to a site are
tagged PO Needs Review instead of being filed against the wrong site.
