"ーすることになっている"
- is to be
「双方合意の上で交わした支払い条件では、BLの受け取りから〇日以内に支払いを完了することになっています。」
- Under the terms of payment agreed upon by both parties, payment is to be completed within X days upon receiving the BL.
- According to the terms agreed upon by both parties, the payment is due within X days upon receiving the BL.
アメリカ合衆国 
