As the name implies, consignment is consignment. I think it's similar to consignment, that is, putting the goods in someone else's sales office and settling the account when selling them. The unsold goods are still in the inventory of the consignor.
Credit sales is a common name for credit sales. Sales on credit are sales based on credit. After the seller and the buyer signed the purchase agreement, the seller asked the buyer to take delivery of the goods, and the buyer paid off the payment on the specified date or in installments as agreed.