Rounding Profiles in STO

Hi,

I wanted to know if there is any place where we can exclude the Rounding Profile "round up/down" for a particular STO document type? I know it comes from Article Master but store to store transfer does not need to round up whereas DC to store transfer does. How can we achieve this differentiation? We are using separate STO types for them.

Appreciate your response.

Thanks

Manav