Cost Centre Splitting

Question

Dears
I am not very much conversant with Controlling.
Still I am supposed to do the period opening activities in Controlling.
I need a clarification on the Cost Centre Splitting.
Cost Centre 300001 is having 3 activity types : MACH001, LAB001, FIN001
In our case, there is a Split structure Z1 and there are 35 assignments to this structure.
When I go into the individual assignment, say, first assignment (defined as 10),
I see that the selection criteria is Cost element group : AB0001 (5 cost elements) & ActivityType : MACH001.
What does this imply ?
I understand that the total plan cost for the cost element group AB0001 will be allocated to the Activity type MACH001 for this Cost Centre 300001.
This cost will not be available to any other activity type in the same cost centre.
Is my understanding correct ?

Answer 1

Hi,
Please look into the following to know the concept of splitting:
Here I am providing the necessity and importance of splitting structure,
                    Expense Analysis and Splitting in Manufacturing Cost Centers
Introduction In SAP Cost center work as a cost responsibility center, where all the expenses and cost are stored and analyzed for the purpose of management decision making.
The cost could be fixed or variable in nature. The difference between variable and fixed costs can be made in various ways in product costing in CO module.
Fixed costs represent the static costs incurred by the organization, which doesn’t change on the basis on manufacturing activities, which remain constant irrespective of production activities like rent for the premises, salaries of office staff etc.
On the other hand, variable cost varies based on the level of production activities; if production activities increase then variable cost also increased like electricity consumes raw material charges etc.
However all the variable cost doesn’t vary in direct proportion by quantity of goods produced.
In this document will try to define; how the Expenses analysis and splitting of cost done in manufacturing cost centers.
From controlling prospective, fixed cost remain constant regardless of operating activities, but if these factor changes, variable cost will fluctuate.
Basically raw material costs represent variable cost, but in this document main focused will be given to distinguish fixed and variable activity cost.
The segregation between fixed and variable cost is optional and is derived from the configuration and master data configured in cost center accounting and overhead accounting.
Activity Price:
There are different methods that could be used in cost center accounting to determine the activity price. The simple way is the manually enter “Fixed” and “Variable” Activity cost (KP26).
However there are other methods used in Cost center Planning and Budgeting that automatically calculate the fixed and variable activity price.
Here the focused will be given on Planning and Budgeting activity and automatic calculation of plan activity rate in cost center.
This method aggregate planned costs by cost element and capacity by plan unit to calculate the activity price.
Activity independent costs are segregated among different activities based on Splitting Structure, while activity dependent cost directly used for the purpose of variable activity rate calculation.  
Fixed Activity Cost:
In product costing all those cost, which doesn’t vary based on the activities in manufacturing cost will represent fixed cost.
In a manufacturing cost centers there may be two or more activities performed.
To calculate the activities rate, the fixed costs are distributed to various activities on the basis of Splitting Structure defined for cost center. 
Variable Activity Cost:
Variable activity cost, which directly depend upon the activity type and fluctuate based on increase or decrease in manufacturing activities. In SAP variable activity cost are directly linked to the respective activity.
Activity Prices: Fixed and Variable Split
In Cost Center Accounting dividing the cost between Fixed and Variable requires appropriate split to be made in the cost entered for the activity. The process is described below:
i.  Variable cost would be planned at activity level and expenses should be maintained at cost element in the manufacturing cost center by assigning activity and cost element combination.
In other word, the expenses should be planned on Activity type at the time of primary cost planning (KP06).
Then the variable activity rates are calculated on Total cost planned at Activity divided by Total number of activity planned at that cost center (i.e. capacity in KP26)
ii. Fixed cost would be planned at independent of activity type. These costs are maintained in KP06 at cost element level on manufacturing cost center.
Then the fixed costs are distributed on various activity types on the basis of Splitting structure defined at OKEW.
In Splitting Structure we define the rules, how the fixed cost will be distributed to Activities. For the purpose of this document, considering split of fixed cost on the basis of Capacity maintained in KP26.
Regards,
Pavan kumar Arvapally