Hi, you can use dynamic rounding profiles in SD, they can be used for STO process.
I have configured it to work, and added a custom code in user exit to make it overrideable
in case we don't need the rounding at a certain time.
If you have defined standard rounding profiles in SD (you can find a lot of docs on this),
you just need to go to Plant / Sloc view 1 and assign the rounding unit of issue to be
able to use rounding in STO process.