How to Set Up Flexible Payment Plans in Invoices

Task-specific steps

A payment schedule divides one invoice into predefined installments by percentage or fixed amount, each with its own due date and payment status.

1. 1Create or edit the invoice and add the correct customer, products, taxes, discounts, and total before dividing it.
2. 2Select Add Payment Schedule in the invoice builder.
3. 3Choose percentage-based or fixed-amount installments and enter each amount and due date.
4. 4Confirm the installments add up exactly to the invoice total and that the due dates follow the agreement.
5. 5Preview and send the invoice. The customer can select one or more available installments for payment, and the invoice becomes paid when all installments are satisfied.
6. 6Test reminder content under Payments → Invoices & Estimates → Settings → Notifications → Customer Notifications, including Payment Schedule Received.

Feature-specific checks

• A payment schedule gives the business control over installment amounts; ordinary partial payment leaves the amount choice with the payer.
• Payment-schedule merge fields are empty on invoices that do not contain a schedule.
• Do not change a partially paid schedule without reconciling completed payments and the remaining balance.

Before you begin

“How to Set Up Flexible Payment Plans in Invoices” is part of the Payments → Estimates area in Adaptive AI. Create and manage estimates before converting approved work. Payment settings can create real charges, invoices, subscriptions, tax records, and customer notifications. Use a controlled test and verify the complete financial record before relying on the setup. The objective is not merely to save a setting; it is to confirm the result works for the staff member or customer who will depend on it.

• Confirm the correct payment provider is connected to the correct business and determine whether you are working in test or live mode.
• Verify currency, price, billing frequency, tax behavior, product or variant details, and customer-facing description.
• Use a clearly labeled internal test customer and avoid using a real customer record while validating a new configuration.
• Review the email, receipt, invoice, estimate, fulfillment, or subscription notifications that the transaction can trigger.
• Confirm your user role permits the intended change and that accounting or fulfillment owners know how the result should be handled.

Verify the result

After completing the instructions in this guide, use a controlled test before treating the setup as finished. A saved screen or success message confirms configuration, but only an end-to-end test confirms the business outcome.

1. 1Preview the customer-facing amount, schedule, terms, product details, and payment method before submitting a controlled test.
2. 2Complete the test and confirm the order, transaction, invoice, estimate, or subscription appears with the expected status.
3. 3Verify the customer record, payment timeline, receipt, internal notification, and connected workflow all contain matching information.
4. 4Check the payment provider or connected accounting system to confirm the same amount, currency, identifier, and status were recorded.
5. 5Validate the next billing date, cancellation behavior, inventory effect, or fulfillment action when the configuration is recurring or product-based.

Troubleshooting checklist

If the result differs from what you expected, preserve the current state and isolate one variable at a time. Start with the checks below before deleting the configuration or rebuilding it from scratch.

• Confirm test and live credentials are not mixed and that the selected product or price belongs to the connected provider account.
• Check required customer fields, currency support, payment-method availability, and any provider decline or validation message.
• Compare Adaptive AI and provider timestamps or identifiers when a payment exists in one system but not the other.
• Review connected workflows and notifications separately from the transaction when payment succeeded but follow-up did not run.
• Do not repeatedly submit a live charge while diagnosing; use logs and a controlled test to avoid duplicate billing.

Best practices

• Use consistent product, price, invoice, and subscription names that make reports and customer statements easy to understand.
• Document refund, cancellation, fulfillment, tax, and failed-payment responsibilities before accepting live transactions.
• Restrict payment-setting access to appropriate staff and review provider connections whenever administrators change.
• Test every new checkout or recurring schedule with the smallest safe test scenario before sharing it publicly.
• Reconcile platform and provider records regularly rather than relying on a single dashboard as the financial source of truth.