Invoices and escalating payment reminders — hands-free, until you're paid

The scenario sends the invoice, tracks it in таблица, checks overdue days every morning, and sends escalating reminders via Gmail; you mark it paid with one message in Telegram.

  • Reminders go out on time — no awkwardness to push through
  • The tone escalates as the invoice ages
  • Mark it paid with a single message in your messenger
  • The client gets a thank-you automatically
Google Sheets