Hi Krishna,
I have the same required as yours.
I implemented the note 914437.
I noticed two peculiar cases from the standard mapping i.e. (standard BP Role sold to party)
1) In BP transaction, in Display in BP Role drop down list box there is no custom BP Role as shown above but if I select the detail Icon I can find it there as shown in below screen shot.
2) I found in Tx BP there is only one BP Role as shown above but in CRM Web UI there are two BP Roles in the ROLEs assignment block.
Could you please add your comments or solution for it.
Thanks,
Raja