Brazil Transaction Nature

Hello,

I have one question regarding Brazil localization.

1. P4210BR is called P4210 application at the time of order creation ,so where they define such that P4210 has to call P4210BR application ?

2.i have a requirement where transaction nature is coming wrong for some of the branch plants. its displaying has 510, instead of 610.

I changed Processing option of P4210BR which has transaction nature to 610. but still order is displaying transaction has 510 .

how to change the transaction nature based on branch and order type, Could you please advice.

Thanks Venkatesh