Invoices captured, checked and coded without manual data entry

What is the real cost of manual invoice handling?

Manual invoice handling looks cheap because it is spread across many people in small pieces. An AP clerk opens an e-mail, copies the supplier name, invoice number, amount and tax into Oracle, then searches for the matching purchase order in another window. When the numbers differ, the invoice sits in a folder while someone asks the buyer what happened.

Each step adds delay and risk. Keying errors create duplicate or incorrect payments. Invoices stuck in inboxes cause late payment charges and strained supplier relationships. Month-end closes slow down because accruals cannot be finalised until invoices are coded.

• Duplicate payments caused by the same invoice being entered twice.
• Late payment fees and early-payment discounts that are missed.
• Accruals delayed at month end because invoices are still unprocessed.
• Staff time spent on retyping rather than on supplier and cost questions.

What changes when Claude handles the first pass?

With Claude in place, the first pass on every supplier invoice happens automatically. Claude reads the attachment, identifies the supplier, invoice number, dates, line items, tax and total, and compares them with the purchase order and goods receipt already recorded in Oracle. Clean matches move forward with a prepared entry. Anything unusual is set aside with a short note explaining the difference.

Your AP team moves from data entry to decision-making. They review a queue of prepared entries and a shorter list of exceptions, resolve questions with buyers and approve payments. The volume of invoices can grow without the team growing with it.

How does Claude connect to Outlook, Oracle and Excel?

Claude works through the connections your organisation already uses. It reads invoices arriving in a shared AP mailbox in Outlook, using Microsoft's secure connection layer, called Microsoft Graph, which respects the permissions each person already has. Claude can also read supplier and vendor lists held in Excel, so that supplier names and bank details are checked against the approved master list.

Prepared entries are sent to Oracle for a named approver to review. Claude does not post journal entries or release payments on its own. Reference data such as chart of accounts and cost centres is read from Oracle so that coding suggestions follow your own rules. It is built on Claude for financial services, from Anthropic.

• Outlook: the shared AP inbox is the single point of intake.
• Oracle: purchase orders, receipts and the chart of accounts are read; entries are prepared for approval.
• Excel: approved supplier lists and tolerance rules can be maintained by the finance team.

A day in the life: an AP team lead before and after

Before: Priya, an AP team lead, starts the morning with 140 unopened invoices in the shared inbox. Her team spends the first two hours keying details into Oracle and checking purchase orders one by one. By lunch, a third of invoices are still waiting for a buyer to confirm receipt, and month-end accruals are behind schedule.

After: The same inbox holds 140 invoices, but 110 already have a prepared, matched entry waiting in Oracle. Priya's team reviews the prepared entries in a single session and approves them. The 30 exceptions arrive with clear notes such as 'unit price 4% above purchase order' or 'no goods receipt recorded'. Priya sends two questions to buyers and clears the rest before the afternoon.

How are governance, security and permissions maintained?

Claude only sees what each user is already allowed to see. An AP clerk who cannot view bank details in Oracle will not see them through Claude either. Every prepared entry records which invoice it came from, which records were matched and who approved it, creating a full audit trail for internal and external auditors.

The design supports the controls your organisation is expected to maintain, including segregation of duties, approval limits and retention rules. Describing how the workflow supports these expectations is not the same as guaranteeing compliance; your finance, legal and audit teams should confirm the design against your own policies and sector rules.

• Approval limits and segregation of duties are enforced by Oracle's existing roles.
• Every entry carries the source invoice and matching evidence.
• Duplicate and altered-bank-detail checks are flagged for human review.
• The Anthropic Trust Center (https://trust.anthropic.com/) provides security and compliance information for review by your teams.

How do you measure whether it is working?

Measure the process before you start, so you can see the change clearly. Useful measures include invoices processed per person each week, days from receipt to approval, the share of invoices matched without manual intervention, duplicate or incorrect payments found, and the number of accruals completed by the close deadline.

Review these measures monthly with the AP team and the controller. Small adjustments to matching tolerances and exception rules usually deliver the biggest gains in the first quarter. Sharing results with the wider finance team also builds confidence in the new way of working. The same approach to finance reporting is described in our article on month-end close commentary, where Claude helps explain the numbers once they are final.

• Days from invoice receipt to approval.
• Percentage of invoices matched without manual work.
• Exceptions resolved within an agreed time.
• Duplicate or incorrect payments caught before release.

How should a finance team get started?

Start with a free automation audit. We review your invoice volumes, supplier mix, purchase order discipline and Oracle setup, and identify the invoice types that would benefit most. Many organisations begin with one supplier group or one business unit, prove the approach and then expand.

Engagements are delivered by forward deployed engineers who work alongside your AP team, so the workflow reflects how your people actually work. Your controller, internal audit and IT security teams are involved from the start. For a broader view of how Claude fits into the Microsoft environment your finance team already uses, see Claude and Microsoft 365 for enterprise transformation.

• Confirm the invoice volumes and exception types in the audit.
• Pilot with one supplier group or business unit.
• Agree approval limits and tolerance rules with the controller.
• Expand once matching accuracy and approval times meet agreed targets.