Create a vendor invoice for each invoice you receive from your vendors and select internal users who should review and approve the invoice.
Note: You will not be able to change the invoice status from Pending Approval until the document routing is complete if the If Not All Document Routing Distributions Are Closed field on the Accounts Payable Settings screen is set to Disable Changing Invoice Status. Document routing is closed when all distributions are set to a status type that sets the distribution to a status of inactive.
Tip: You can also create a vendor invoice without routing it for approval. See Create a Vendor Invoice for details.