Multi assignments are, next to retro-active recalculations (I do not use Retropay on purpose, I come back on that later), a very crucial part of this implementation over here.
The latest patch for the Dutch Payrol localization was installed yesterday, including the multi assignment functionalities. Installtion went smooth. New routes were found, and I saw the first time a balance dimension _PER_PAY_PTD. A dimension that aggragates run results for all assignments belonging to a specific payroll.
That's almost what we need over here.