Understanding Credit Card Payments and Invoice Management
Managing invoice payments efficiently is critical for businesses to maintain healthy cash flow and vendor relationships. Two common methods—credit card payments and direct deposit—offer distinct advantages depending on the transaction context. Credit card payments provide immediate processing and rewards opportunities, while direct deposit (often via Automated Clearing House or ACH) ensures secure, low-cost transfers for recurring payments.
How Credit Card Payments Work for AP Invoices
When paying an accounts payable (AP) invoice with a credit card, businesses typically use a dedicated credit card register or integrate the payment into their accounting system. This method allows for real-time tracking and reconciliation, similar to managing a standard bank account. After processing, the credit card statement reflects the payment, which can be reconciled against the bank register just like any other transaction.
Direct Deposit as an Alternative Payment Method
Direct deposit, primarily through ACH networks, is widely used for vendor payments due to its reliability and lower transaction fees compared to credit cards. Funds are transferred electronically from the payer’s bank account to the vendor’s account, often settling within one to two business days. This method is particularly effective for regular, high-volume payments where minimizing processing costs is a priority.
What Are Invoice Match Exceptions?
Invoice match exceptions occur when an invoice does not align with the corresponding purchase order (PO) or receiving documentation. Common triggers include discrepancies in quantity, unit price, or total amount, or when the invoice exceeds predefined thresholds (e.g., $5,000 at certain institutions). These exceptions halt automatic payment processing and require manual review to resolve discrepancies before approval.
Common Causes of Invoice Match Exceptions
Several factors can lead to match exceptions. The most frequent cause is a missing receiver—meaning goods or services were received but not formally documented in the system. Other common issues include invalid or closed PO numbers, PO amounts exceeded, invoices not matching the PO details, insufficient funds on blanket POs, duplicate submissions, or incorrect remittance addresses. Vendors not accepting US dollars or POs not configured as amount-only orders can too trigger exceptions.
The Invoice “Send Back” Process
When a match exception is identified, the invoice is typically “sent back” to the originating department for correction. At institutions like Northwestern University, iBuyNU match exceptions are reviewed by the eProcurement team, while all other exceptions are handled by the Accounts Payable (AP) team. The AP team reviews exceptions for non-iBuyNU systems and communicates the specific reason for the send-back via email from an unattended mailbox (e.g., northwestern@easyaccess-ap.com). Departments must address the issue—such as providing missing receiving documentation or correcting PO details—before the invoice can proceed to payment.
Resolving Invoice Match Exceptions
To resolve an exception, departments must first identify the root cause using the send-back notification. Actions may include submitting a missing receiver, correcting PO information, verifying pricing, or obtaining additional approvals. Best practices recommend addressing exceptions within three business days of notification to avoid payment delays. Once resolved, the invoice is re-submitted for matching and, if approved, processes according to standard payment terms.

Preventing Future Match Exceptions
Proactive measures significantly reduce the occurrence of match exceptions. Creating accurate and complete requisitions ensures POs are properly established before purchases occur. Departments should verify that all goods and services are received and documented in the system, and that POs remain active with sufficient funds. Regularly reviewing reports such as the Open Encumbrance Report (SC016) and Match Exceptions Report (SC027) helps teams monitor outstanding commitments and recurring issues.
Choosing Between Credit Card and Direct Deposit for Vendor Payments
The choice between credit card and direct deposit depends on factors like transaction size, frequency, and cost sensitivity. Credit cards are advantageous for smaller, infrequent payments where rewards or immediacy matter, while direct deposit via ACH is preferable for larger, recurring payments due to lower fees and reduced risk of interest charges. Some organizations use both methods strategically—for example, credit cards for travel and entertainment expenses and ACH for routine vendor invoices.
Best Practices for Efficient Invoice Processing
Streamlining invoice management involves clear policies, timely communication, and leveraging technology. Organizations should establish thresholds for automatic matching (e.g., invoices under $5,000 may auto-approve with proper documentation) and maintain open channels with vendors to address discrepancies quickly. Training staff on PO creation, receiving procedures, and exception handling ensures fewer errors enter the system. Integrating AP systems with purchasing modules enables real-time validation and reduces manual intervention.
Key Takeaways
- Credit card payments offer speed and rewards but may incur higher fees; direct deposit (ACH) is cost-effective for recurring vendor payments.
- Invoice match exceptions halt payment processing and require departmental review to resolve discrepancies like missing receivers or PO mismatches.
- The most common cause of match exceptions is a missing receiver documentation.
- Resolving exceptions promptly—ideally within three business days—prevents payment delays and maintains vendor trust.
- Proactive PO management and regular report reviews minimize future exceptions.
Frequently Asked Questions
What is the primary reason for an invoice match exception?
The most common cause of a match exception is a missing receiver, meaning the receipt of goods or services was not recorded in the system.

How long should departments take to resolve a sent-back invoice?
Best practice is to address invoice match exceptions within three business days of notification to avoid delaying payment.
Can credit card payments be used for all types of vendor invoices?
While credit cards can be used for many vendor payments, they are often reserved for specific categories like travel or entertainment due to processing fees; direct deposit via ACH is typically preferred for recurring, high-value invoices to minimize costs.
Who reviews invoice match exceptions at Northwestern University?
iBuyNU match exceptions are reviewed by the eProcurement team, while all other exceptions are handled by the Accounts Payable (AP) team.
What report helps departments monitor outstanding commitments related to POs?
The SC016 Open Encumbrance Report helps departments track open encumbrances and commitments tied to purchase orders.