Define thresholds per category using rolling averages, not rigid monthly caps. When spending approaches the line, send a message that offers a choice: adjust the plan, move funds, or pause optional expenses. Include a short, encouraging note reminding you why the goal matters. Small language changes dramatically influence whether you act or dismiss.
Use email for detailed summaries, push or SMS for urgent anomalies, and chat for quick approvals. Add quiet hours so evenings and weekends stay calm, but allow critical fraud-like spikes through with a distinct tone. Include direct action links in each message to categorize, reassign, or set a temporary freeze without opening multiple apps.