Where AI fits in purchasing

Today. An employee emails or messages someone to buy something, with a link, no budget line and no reason attached.

With AI. Drafts the request from the description or quote, fills in the item, amount, department and reason, and asks for anything missing. In: a plain-English request and the supplier's quote or link. Out: a complete purchase request with an owner, an amount and a reason.

Who decides. AI-assisted: AI drafts the request, the requester confirms it. AI-run: Complete requests move on, gaps go back to the requester.

Control. Every purchase starts with a request that names a requester, an amount and a reason.

Tools that do this. Procurify (score 72): Guided Intake drafts the request from a plain-language description (paid add-on). Precoro (score 70): its AI Assistant turns a supplier quote into a requisition draft. Ramp (score 85): the Procurement add-on takes plain-English requests, routes the approvals and creates the PO. Coupa (score 82): its Request Creation Agent reads statements of work and uploaded files to draft a request, per Coupa.

Today. Someone opens the budget spreadsheet, guesses what is already committed, and hopes the department has room.

With AI. Looks up the budget line, subtracts spend and POs already committed, and shows what is left before anyone approves. In: the request, the department budget and open POs. Out: a request tagged in budget, or over budget with the gap.

Who decides. AI-assisted: AI shows the remaining budget, the approver decides. AI-run: In-budget requests move on, over-budget ones go to the budget owner.

Control. Open POs count against the budget the moment they are approved, not when the bill arrives.

Tools that do this. ApprovalMax (score 72): approvers see the remaining budget inside the request, and bills and POs still in approval count against it (Advanced plan). Procurify (score 72): multi-level routing checks department, account code and budget before a purchaser turns the order into a PO. Precoro (score 70): adds real-time budgets on the Automation plan, and rules route requests by amount, department, location or project. Order.co (score 68): approval rules can trigger on over-budget status as well as user, location, cost center and order total.

Today. The requester buys from whoever they found online, at whatever price was on the page.

With AI. Suggests the approved supplier and agreed price from your catalog and order history, and hands a new supplier to vendor setup. In: the request, your approved suppliers and past orders. Out: a request with an approved supplier and price, or a vendor setup hand-off.

Who decides. AI-assisted: AI suggests the supplier and price, the buyer confirms. AI-run: Catalog items fill themselves, new suppliers go to vendor setup.

Control. Buy from approved suppliers at agreed prices, and send any new supplier through vendor setup first.

Tools that do this. Procurify (score 72): suggests the vendor, GL code and budget line for each item from your order history. Order.co (score 68): staff shop one approved catalog built from your order history and supplier accounts. Precoro (score 70): adds PunchOut catalogs such as Amazon Business, Staples and Grainger on the Automation plan. Volopay (score 65): a product catalog links items to vendors and their quoted prices.

Today. Nobody looks at the request as a whole, so split orders, odd quantities and off-catalog buys slip through.

With AI. Checks the request against policy and recent orders, and flags unusual prices, quantities, timing and orders split to stay under a limit. In: the request, your buying policy and recent orders. Out: a clean request, or an exception with the reason.

Who decides. AI-assisted: AI flags exceptions, a person reviews every request. AI-run: Clean requests move on, exceptions go to a person.

Control. Orders split to stay under an approval limit are treated as one order.

Tools that do this. Order.co (score 68): an AI recommendation flags orders with unusual prices, quantities or timing for the approver. Vertice (score 77): compliance and legal agents check requests and contracts against policy before approval. Ramp (score 85): procurement agents triage requests, review contract terms and run compliance checks.

Today. Approvals happen in email threads and hallway chats, and sometimes the requester approves their own order.

With AI. Picks the approvers by amount and department, puts the budget and every flag on one card, and chases until they decide. In: the checked request, the budget result and any flags. Out: a yes or no from the right person, with the reason logged.

Who decides. AI-assisted: The budget owner decides, with every check in view. AI-run: The budget owner decides, always, above the limit.

Control. The budget owner approves spend above the limit, and nobody approves their own request.

Tools that do this. ApprovalMax (score 72): the requester can be a condition in the approval rules, so nobody signs off their own request. Order.co (score 68): approval rules run before anything reaches a supplier, and approvers can act from email. Procurify (score 72): multi-level approval routing, with audit logs of each decision.

Today. Someone retypes the approved request into a PO template, emails it to the supplier and hopes it was received.

With AI. Fills the PO from the approved request and quote, sends it to the supplier, and records that they accepted it. In: the approved request and the supplier's quote. Out: a PO the supplier has accepted, tied to the approval.

Who decides. AI-assisted: AI drafts the PO, the buyer checks and sends it. AI-run: Approved requests become POs and go out on their own.

Control. No PO, no pay: every bill must point to an approved PO.

Tools that do this. Spendesk (score 75): AI pre-fills the PO from an uploaded quote, and approved POs go to the supplier (paid add-on). Lightyear (score 68): requisitioners raise POs from a supplier catalogue, and suppliers accept them by email. Precoro (score 70): blanket POs and receipt tracking are on every plan.

Today. Nobody records what arrived, so AP pays the bill and hopes it matches what was ordered.

With AI. Matches each invoice line to the PO and the receipt, and flags price and quantity differences before payment. In: the PO, the goods receipt and the supplier's invoice. Out: a matched bill ready to pay, or a mismatch with the reason.

Who decides. AI-assisted: AI matches, a person approves each bill. AI-run: Matches inside tolerance go to payment, mismatches go to a person.

Control. 3-way match: the PO, the goods receipt and the invoice must agree before the bill is paid.

Tools that do this. Lightyear (score 68): sites record goods received, then it matches invoice lines to PO and receipt lines and flags discrepancies (Standard plan). Procurify (score 72): automated two and three way matching flags unit cost and quantity variances. Stampli (score 80): matches invoices to POs and receipts 2 and 3-way, and can skip approval when a match falls inside tolerance. Volopay (score 65): runs a 3-way match of PO, goods receipt and invoice and alerts on discrepancies before bill-pay approval.

“Has my order for the two standing desks gone out yet?” Reads the request and PO status and answers with the supplier and delivery date. AI-run sends the answer. AI-assisted drafts it for the buyer.

“Our price went up since the quote. Can you update the PO to the new price?” Compares the new price with the quote and the PO, and shows the budget impact. The buyer decides any price change on a PO.

“Can you split this $12,000 order into three $4,000 POs so it skips approval?” Never splits an order to dodge a limit. Flags the request and routes it to the budget owner. The budget owner, always.

Tools that do this. Vertice (score 77): with its MCP connector, Claude can open a purchase request and asks before acting. Procurify (score 72): its Spend Analyst answers plain-language spend questions, such as spend with a vendor last quarter. Order.co (score 68): its Command Center chat reads spend history and builds carts (beta). Zip (score 80): through its MCP connector, Claude can check where a purchase request is stuck (beta).