I am trying to add an additional field in the API request I am trying to choose payment method from the API request
I tried
paymentMethod,
paymentMethodCode,
paymentMethodID
but no luck is there any way to add it

I am trying to add an additional field in the API request I am trying to choose payment method from the API request
I tried
paymentMethod,
paymentMethodCode,
paymentMethodID
but no luck is there any way to add it
Hi, so far, the standard APIs are not extensible, you cannot add new fields.
More details: https://yzhums.com/20960/
If the standard API you use has this field, you can try to use Get method first.
Hope this helps.
Thanks.
ZHU