A tiny automation that recovers a shocking amount of unpaid invoices.
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Client Problem
20% of invoices go past due. Two polite nudges recover most.
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Architecture
Cron → Sheets/DB → filter overdue → WhatsApp Cloud API → log reply.
Section
Build
Google Sheets node, filter expression, Loop Over Items, WhatsApp POST, back to Sheets.
Section
Delivery
Template message, tone-tuned in Roman Urdu / English.
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Pricing
$400 setup, or 5% of first month recovered.