Invoice Monitor That Learns Customer Patterns

An OpenClaw agent monitors overdue invoices on a schedule, remembers how each customer typically responds, and adapts its follow-up tone and timing accordingly -- turning collections into a persistent, intelligent process.

What it does

Unlike a simple reminder bot, this agent builds up knowledge over time:

• Scheduled invoice scanning via cron checks for overdue payments daily
• Customer memory: remembers that Client A always pays after the second reminder, while Client B needs a phone call
• Adaptive follow-ups: adjusts email tone (friendly nudge vs. formal notice) based on payment history
• Escalation logic: auto-escalates to you via Telegram when an invoice passes a threshold (e.g. 30 days overdue)
• Pattern detection: flags unusual behaviour ("Client C usually pays on time but is now 2 weeks late")

Setup overview

1. Install the AgentMail skill for sending follow-up emails from a managed identity
2. Connect your invoicing system (Stripe, QuickBooks, or a spreadsheet)
3. Enable persistent memory in OpenClaw so the agent retains context across sessions
4. Configure a daily cron job: 0 9 * * 1-5 openclaw run invoice-check
5. Connect Telegram for escalation alerts

LLM and tools

Requires Claude 4.5 Sonnet for its strong reasoning about customer patterns and tone adjustment. The persistent memory system is the key differentiator -- this is where OpenClaw's "infinite memory" architecture shines.

Source

Based on Secure OpenClaw With Infinite Memory Is the First Time Agents Feel Real (Feb 20, 2026)