How do I enable Goods Receipt (GR) based invoice verification for my company's site?

First, have your Designated Support Contact (DSC) file a Case to enable the site parameter Application.Procure.EnablePriceDateControl, to have the invoice use the applicable price from the receipt rather than the order.

Next, enable the self-service parameter Application.Procure.EnableGRBasedInvoice.
If you want to allow GR-based invoice verification without a ship notice ID on the invoice, also enable the self-service parameter Application.Invoicing.MatchReceiptToInvoiceWithoutShipNotice. (Ship notice IDs will still be required for receipts.)

Finally, run the import task Import Supplier Location Contacts or Import Supplier Location Data (Consolidated File) with the column GRBasedInvoicingPreferred set to true for any supplier locations that you want to use this functionality with.

Refer to the topic Goods receipt-based invoice verification in the Invoicing and payment process guide for more information.

Additionally, note that only quantity-based receipts are currently supported for GR-based invoicing.

Invoicing > Invoices against receipts with a ship notice ID
Invoicing > PO Based Invoicing