Purpose
1.2. Reduce manual follow-up time, improving cash flow and increasing timely payments.
1.3. Ensure consistent communication with clients and maintain a professional financial workflow.
1.4. Enable photographers to focus on creative operations by minimizing repetitive administrative tasks.
Trigger Conditions
2.2. Scheduled reminder intervals (e.g., 1 day before, day of due, 3 days overdue, 7 days overdue).
2.3. Receipt of payment, automatically suppressing further reminders for that invoice.
2.4. Client details and email addresses properly recorded in the CRM or invoicing software.
Platform Variants
3.1. QuickBooks Online
• Function: Invoice API – Monitor invoice status; trigger on “DUE” status.
• Sample: Configure webhook for “invoice.due” event to initiate email sequence.
3.2. Xero
• Function: Accounting API – Track changes in invoice state.
• Sample: Use GET /invoices endpoint with status filter; send reminders on match.
3.3. FreshBooks
• Function: Invoice Events – Use webhook for invoice.due event.
• Sample: Set up webhook to fire when invoice transitions to due.
3.4. Zoho Books
• Function: Automation Rules – Create workflow to send email on due invoices.
• Sample: “When invoice status = Due, then send email template to client.”
3.5. Wave
• Function: Invoice Notifications – Enable auto-reminders in settings.
• Sample: Activate “Send reminder before due date” toggle.
3.6. Stripe
• Function: Billing API – Track invoice lifecycle events.
• Sample: webhook for “invoice.upcoming” or “invoice.past_due” to trigger reminder.
3.7. PayPal Invoicing
• Function: Webhooks – Use INVOICING.INVOICE.DUE webhook for notifications.
• Sample: Connect webhook to email delivery logic.
3.8. Square
• Function: Invoice API – Listen for invoice status updates.
• Sample: Use webhook for “invoice.updated” with status filter.
3.9. Sage Business Cloud
• Function: Workflow Automation – Conditional triggers on outstanding invoices.
• Sample: “If invoice is due, execute email notification to customer.”
3.10. Microsoft Outlook
• Function: Outlook REST API – Automated email send.
• Sample: Compose and schedule invoice reminder with custom templates.
3.11. Gmail
• Function: Gmail API – SendEmail endpoint for reminders.
• Sample: “Send email to client_email with invoice template when triggered.”
3.12. SendGrid
• Function: Mail Send API – Custom transactional email.
• Sample: POST /mail/send with dynamic template for overdue notice.
3.13. Mailgun
• Function: Email API – Message send with variables for invoice details.
• Sample: “Send email with subject: Payment Reminder, body: {{invoice_info}}.”
3.14. SMTP Server
• Function: AUTH SEND – Email relay for custom systems.
• Sample: SMTP routine to send templated reminders when trigger received.
3.15. ActiveCampaign
• Function: Automation Builder – Trigger emails on custom CRM fields.
• Sample: “If Invoice Due Date = Today, send payment reminder email.”
3.16. HubSpot
• Function: Workflows – Automated email on invoice due property.
• Sample: Set workflow trigger: Invoice Due Date is Today, action: send reminder.
3.17. Pabbly
• Function: Email Automation – Integrate with invoice data via webhook.
• Sample: When webhook from invoice app, send reminder email to client.
3.18. Integromat (Make)
• Function: Scenario – Connect invoicing and email modules for reminders.
• Sample: New due invoice triggers email notification module.
3.19. Salesforce
• Function: Process Builder – Send emails upon invoice due trigger.
• Sample: On Invoice Status = Due, send email to Contact.
3.20. Airtable
• Function: Automations – Triggered emails on due date field.
• Sample: “If [Due Date] = Today, send reminder using email action.”
Benefits
4.2. Reduces manual oversight and administrative labor.
4.3. Ensures professional client communication without errors or omissions.
4.4. Frees operational time for aerial photography tasks and business development.
4.5. Enhances overall cash flow and client compliance with payment terms.