When a PDF invoice arrives in Gmail, then extract the totals into a spreadsheet
A Gmail trigger — the event that starts a workflow — watches one label, a document step reads the attachment, an AI step pulls supplier, date and amount, and a row lands in Sheets.
Why this one: Elsewhere, reading a PDF means bolting on a separate parsing service; here it is another box on the same canvas.
Tweak: Flag anything over a threshold into Slack instead of filing it silently.
