PP-PI Order variance calculation & month end adjustment

Hi,

Guys

I Have any issue related to PP-PI order variance & there settlement.

i have four order A,B,C,D,of different material order A,B,C are of halb material where as D order is of fert material.order D consume C order C consume B & B consume A material.order B,C,D are fix order of 500 mt.Order A fix order of 1380 mt. order B & C are approximate qty order & final order D is a real known qty order. so when i confirm order D then that order of 500 tons which is order qty actually finds 490 (case 1) or 510 qty(case 2). this is happening daily so at the month end i get hugh difference for what i produced & consumed across the materials. ( order B,C,D,are with batch mgmt).

How to do month end balancing of thsese orders ? is there any process for this?

With Best Regards,

Kareena