Many suppliers are never sent POs, especially suppliers associated with non-manufacturing expenses. Invoices received from these suppliers are entered directly in the Supplier Invoices screen without any PO matching. In this task you will assign a default GL account to each non-PO supplier. Whenever you enter a supplier invoice, the default account will be used unless you override it.
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NOTE: The supplier GL account is entered within the GL Account sub-tab in the Detail tab. Only enter a GL account against non-PO suppliers.