1. Unless otherwise agreed between the assignor and the assignee, the assignor or the assignee or both may send the debtor notification of the assignment and a payment instruction, but after notification has been sent only the assignee may send such an instruction.
1. 除非转让人与受让人之间另行议定，转让人或受让人或双方均可向债务人发出转让通知和付款指示，但在通知发出后，只有受让人才可发出这种指示。