Use Cases

When invoices get rejected for a missing PO number

Discover why invoices with missing PO numbers get rejected and how to prevent it. Learn best practices to streamline your billing process. Read more now!

By David Diaz, Co-Founder DALE Labs·Reviewed by Leonardo Shapiro, Co-Founder DALE Labs·Updated August 2026
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The Problem: Why This Matters

In the world of B2B finance, an invoice rejected due to a missing purchase order number can create a cascade of problems for finance teams. When an invoice is not entered into the system, it remains unpaid and ages as though it were simply late, leading to cash flow issues and strained customer relationships. The financial health of a company depends on timely payments, and unresolved invoice rejections can have serious repercussions, including missed revenue targets and increased administrative burdens.

How Most Providers Handle It Today

Most accounts receivable solutions on the market today rely heavily on manual processes or limited automation to address invoice rejections. These systems often lack the capability to escalate issues promptly or store customer-specific billing requirements. As a result, finance teams may not be alerted to rejections until months later when the invoice becomes significantly aged, leading to delayed payment resolution and potential cash flow disruptions. This reactive approach falls short, as it leaves businesses with unresolved invoices that could have been fixed with timely intervention.

ARPilot's Approach: Solving the Problem Differently

ARPilot revolutionizes the approach to handling invoice rejections by leveraging AI to escalate issues to accounts payable within the first week, rather than waiting for invoices to age. By incorporating AI-driven automation with human oversight, ARPilot ensures that potential rejections are identified and addressed early in the process. Each customer's specific billing requirements are stored in the system, ensuring that future invoices are sent out correctly, reducing the likelihood of repeated errors. This proactive approach shifts the focus from reactive problem-solving to preventive care, enhancing efficiency and accuracy throughout the invoicing process.

Key Benefits and Measurable Outcomes

ARPilot offers tangible benefits to finance teams seeking to improve their invoice management processes:

  • Early Escalation: Issues are escalated to accounts payable within the first week, allowing for quick resolution of missing purchase order numbers and other rejections.
  • Billing Requirement Storage: Customer-specific billing requirements are stored in the system, preventing future errors and ensuring compliance with each customer's unique needs.
  • Reduced Invoice Aging: By addressing rejections early, invoices are less likely to age due to unnoticed errors, improving cash flow and financial predictability.
  • Improved Customer Relationships: Timely invoice resolution fosters better customer relationships by reducing disputes and ensuring smooth transactions.

FAQ

What happens if an invoice is rejected for a missing PO number?

ARPilot escalates the issue to accounts payable within the first week, allowing finance teams to address and resolve the rejection promptly, rather than letting the invoice age.

How does ARPilot store customer billing requirements?

ARPilot records each customer's specific billing requirements in the system, ensuring that future invoices are generated correctly according to the customer's needs.

How does ARPilot's approach differ from other providers?

Unlike other providers that rely on manual processes, ARPilot uses AI-driven automation to escalate issues early and store billing requirements, offering a more proactive and efficient solution.

Can ARPilot integrate with my existing accounting system?

Yes, ARPilot integrates with QuickBooks Online through bidirectional syncing and can connect with other accounting systems via REST API, CSV import, or a custom adapter under an Enterprise agreement.

What is the pricing structure for ARPilot?

ARPilot offers a free tier for up to 10 invoices a month, with a Starter plan at $99 per month, a Professional plan at $299 per month with API access, and custom pricing for Enterprise agreements. Annual billing options provide about two months free.

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About the author
David Diaz, Co-Founder DALE Labs

David is the Co-Founder of DALE Labs, he is a Full Stack Developer with years of experience creating terrific web experiences. During his time as a developer, he has lead teams, trained developers, launched new products and created tons of value for a plethora of clients around the world.

Reviewed by Leonardo Shapiro, Co-Founder DALE Labs

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What ARPilot costs

Published pricing, billed monthly. Annual billing is about two months free.

Free

$0 /month

10 invoices per month

Starter

$99 /month

50 invoices per month

Professional

$299 /month

200 invoices per month

Enterprise

Custom

Unlimited invoices per month

Connects to QuickBooks Online in about fifteen minutes. No implementation partner. Compare every plan