Adding payment terms to your Tradeshift invoice is not mandatory, as this information would need to be agreed with your customer beforehand.
Nevertheless, if you would like to add payment terms to your invoice, this can be done via two methods:
1. Payment Note
Select a payment method from the drop-down list.
Add the payment terms in the Payment Note field.
1. Write a message to the recipient
The second method is filling in the payment terms in the Write a message to the recipient box of the invoice.