REST API order cannot disable shipping?

[nino15]

when i create order, I set 

application_context: {

    shipping_preference: "NO_SHIPPING"

}

and set items category "DIGITAL_GOODS"

but, the order still ask me to add tracking info, can any one help me, thanks

[nino15]

Can Paypaler answer me?

[nino15]

upup

[nino15]

I will stick this post manually until I get the solution

[nino15]

up

[nino15]

pp's support is sick.

[nino15]

pp's support is sick.

[nino15]

pp's support is sick.