Buying accounts payable support: define where preparation ends

An accounts payable proposal should describe the invoice's route from receipt to the company's approval and eventual payment record. Ask which stages the provider accepts. Capturing a bill, proposing an account, checking support and preparing a payment request are separate activities. A package called AP management may cover only some of them.

Give the provider examples of ordinary bills and genuine exceptions, with sensitive information removed. Include a duplicate invoice, a bill without a purchase reference and a disputed charge. Ask how each enters the workflow and which party must decide the next action. The result should be a service boundary your operations team can use.

Assign an internal person to confirm that goods arrived or work was accepted. The accountant may inspect documents without knowing whether a supplier performed the service. Specify who authorizes an expense, approves an exception and resolves a disagreement with a department. Do not make silence the accidental approval mechanism.

AICPA Member Insurance Programs emphasizes management's responsibility for business decisions in a CAS engagement. Apply that distinction by recording which checks the provider performs and which approvals remain with the company. The scope should identify authority explicitly rather than relying on job titles such as finance partner or AP manager.

Request a payment-ready list showing approved bills, due dates, unresolved exceptions and the evidence behind approval. Decide whether the provider is responsible for collecting missing documents or only notifying the company that they are absent. Include the expected follow-up cadence and how blocked items reach a responsible manager.

IRS guidance describes invoices and other documents as support for business entries. In the service design, retain the link between the bill, its support and the resulting record. An inbox emptied by moving unresolved invoices into another folder is a different result from a queue with every item assigned and its status explained.

Choose a delivery cadence that fits supplier commitments and internal approval availability. If the company approves bills once a week, a daily preparation promise may add little value. Conversely, a weekly process may be insufficient for time-sensitive obligations. Have the provider explain the capacity and notice assumptions behind its proposed schedule.

Ask how the fee treats credit notes, disputed bills, foreign documents, repeated follow-ups and rush requests. Determine whether the bill count includes rejected duplicates or multiple pages of one invoice. Compare proposals on the same population and retained internal tasks. A low processing rate can leave substantial investigation with your employees.

Define responsibility for supplier master changes separately. Whoever processes bills should not gain unrestricted ability to change payment details by default. Have your control owner approve permissions and verification responsibilities. The purchasing decision is about who owns each task; the company's payment controls should govern how authorized actions occur.

Before recurring work begins, trace an approved invoice and a blocked exception through the agreed process. Confirm that the internal approver can see the evidence and that the provider knows where authority stops. Use safe test data where possible and obtain approval before changing live records.

At the first review, inspect unresolved-item age, avoidable duplicates and the effort spent chasing approvals. Agree corrections to the workflow based on observed causes. Retain the responsibility map with the engagement so a new employee can use the service without assuming that the provider has taken over every purchasing decision.