Invoice（E-invoice): A document recording transactions between a Supplier and Buyer, including self-billed e-Invoices for expenses.

Credit Note: A credit note is issued by Suppliers to correct errors, apply discounts, or account for returns in previously issued e-Invoices, reducing the original invoice value without monetary return to the Buyer.

Debit Note: A  document issued by Suppliers indicating additional charges on a previously issued e-Invoice.

Refund Note: A document issued by Suppliers confirming the refund of the Buyer’s payment, used when money is returned to the Buyer.

Invoice 发票：一份记录供应商和买家之间交易的文件，包括用于费用的自开票电子发票。

Credit Note 贷方借据：商家发出的文件，用于更正错误、应用折扣或记录之前发出的电子发票中的退货情况，减少原始发票金额而不向买方退款。

Debit Note 借方票据：商家发出的文件，说明之前发出的电子发票中的额外费用。

Refund Note 退款：商家发出的文件，确认向买方退款的支付，用于将款项退还给买方的情况。