Build a role defined control which allows accounts payable clerks to post/create accounts payable invoices that are within a certain percentage threshold from the Purchase Order.
If the variance is too large, the invoice can not be posted until approved by an approver. This would operate similar to the purchase order approval process.
The idea has been reviewed by the Product Team, and may be considered for the roadmap. In the meantime it will remain in this status so other customers can vote and discuss the idea here. Votes and engagement around the ideas are data points the product team uses when prioritizing the product roadmap.