Factoring is only available as a funding source for companies that sell on credit terms, meaning that a borrower (the vendor) sells a good (or service), generating an invoice to its buyer for payment at a later date (terms may be 30, 45, or 60+ days).
Factoring can be a source of “non debt” financing when it is done on a without recourse basis. Factoring is linked to receivables and sales. It cannot be used for funding inventory.