Payment Non-adjustability

Payment Non-adjustability means that after the buyer and seller confirm an order, the payment terms (such as amount, currency, payment method, payment deadline, etc.) may not be unilaterally modified or renegotiated. This term is commonly used in letter of credit, documentary collection, or telegraphic transfer transactions, especially when the contract or letter of credit explicitly states 'non-adjustable'; neither party may request changes to payment conditions on the grounds of exchange rate fluctuations, cost changes, or policy changes. Use cases include: long-term supply agreements, customized product orders, advance payment or balance payment arrangements. Precautions: the seller should ensure that the quotation has included all potential risks, and the buyer needs to confirm that funding arrangements are correct; if adjustment is required, both parties must agree in writing and amend the letter of credit or contract. Compared with 'adjustable payment', this term emphasizes rigidity and reduces the seller's collection risk, but lacks flexibility; unlike an 'irrevocable letter of credit', the latter focuses on the irrevocability of the issuing bank's payment undertaking, while this term focuses on the non-modifiability of the payment terms themselves.