I\'m using paypal adaptive payments for my website. I have different sellers and different products but the problem is that when a user buy something from my website in the
With Adaptive Payments you will need to use SetPaymentOptions API Operation in order to modify those fields (line item, business name, etc), you can find all the variables here.
You can find an example here: https://github.com/paypal/adaptivepayments-sdk-php/blob/master/samples/SetPaymentOptions.php
Line item works with embedded flow only.