Procurement
The GRN. Stock does not exist in the system until this posts.
Where to find it: Left menu → Procurement → Goods Receipts

Step 1
Left menu → Procurement → Goods Receipts. If the name is missing, your role does not include it — ask an admin in Users & Roles.
Step 2
Prefer Inventory → Goods Receipts for counted receipts against a PO or ASN. Use this list for follow-up and QC release.
Step 3
On-hand stock should rise. The PO received quantity should update. You can then match the supplier invoice.
Yes. Goods Receipts is a signed-in workspace screen. This public page teaches the screen with a picture and a link to the feature video. It never shows another company’s data.
The left menu only shows screens your role may open. Ask a company admin to grant the matching permission, or to show you which role should own this step.
That breaks three-way match. Receive first unless you are posting a service with a different policy.