Purchase orders that carry vendor part numbers, receiving that checks against the order, and vendor bills that are matched three ways before anyone pays them. The paperwork guards itself.

Spend controls that actually control spend
Per-user limits
Purchase limits and approval authority per user. An order over someone's limit routes to a person who can sign off, through a shared approval queue.
Three-way matching
Vendor bills match against the purchase order and the receipt. A mismatched bill is held out of payment until reviewed, with tolerances you set per vendor and a logged override.
Receiving
Receive against the order, including partial receipts, so what hit the dock and what was promised never drift apart quietly.
Vendor performance
An AP aging report, a bill exceptions queue, vendor returns and vendor performance reporting, so renewal conversations start with numbers.
From low stock to submitted PO in two clicks
With Inventory alongside, reorder suggestions land in a queue and become purchase orders straight from the low stock report. Automation rules can flag POs over a threshold for approval, and bills sync to QuickBooks Online once they clear matching.
$59 a month, plus seats
Either Purchasing or Inventory unlocks vendor records and vendor part numbers; together they close the reorder loop end to end.
Common questions
Who approves an over-limit purchase order?
Whoever holds approval authority for that amount. Requests land in a shared approval queue with a full run log, so nothing waits in a private inbox.
What happens to a mismatched bill?
It is held out of payment and lands in the bill exceptions queue. Someone reviews it, and letting it through takes a logged override. Tolerances are configurable, per vendor if needed.