Automating purchase-invoice coding from Outlook

Why the inbox is part of the coding process

Purchase invoices often arrive through email, while coding history and financial controls sit in the ERP. The team moves between the two systems to identify the supplier, understand the cost and enter general-ledger and dimension values.

Bringing those sources together can remove much of the preparation without removing the approval decision.

Extract the relevant invoice information

The workflow should capture supplier, invoice number, date, amount, tax and line-level descriptions. It must retain a link to the original document so the reviewer can verify the prepared information.

Use accounting context carefully

Previous invoices, supplier defaults and purchase-order information can inform a coding recommendation. They should not be treated as proof that the same coding is correct. Changes in entity, department, project or the nature of the purchase can alter the decision.

Present recommendations for review

Show the proposed G/L account and dimensions beside the invoice line and the relevant context. Highlight missing or low-confidence values instead of filling them silently. The reviewer should be able to adjust the recommendation before posting.

Separate preparation from posting

Preparing coding and committing an entry are distinct controls. Design the workflow so each stage has a clear status and authorised action.

The useful outcome is a review-ready invoice: the document is organised, key information is captured and proposed coding is visible before anything is posted.