SAP CO Transactions: Process Flow, Hierarchy & Relationships

JinJin48

SAP Consultant | BTP · S/4HANA · US Global Rollout

June 7, 2026 · 6 min read

TL;DR

SAP CO transactional objects span eight phases — Product Cost Planning, Planning, Cost Center Accounting, Internal Order Accounting, Project Cost Controlling, Product Cost by Order, Profitability Analysis, and Period-End Closing — covering twenty-nine objects that link cost planning to settlement end-to-end.
The dependency order is strict across phases: Standard Cost Estimate must be Created → Marked → Released before the fiscal year begins; annual planning feeds daily actual postings; period-end closing must execute in a fixed sequence (Activity Price Calculation → Cost Splitting → Allocation Cycles → Template Allocation → WIP → Variance → Settlement → Reconciliation).
Each end-to-end controlling scenario (Standard Cost Planning, Cost Center Planning and Execution, Internal Order Accounting, Production Order Costing, Profitability Analysis, Period-End Closing) is covered in detail in CO-B02 onward.

1) Transaction Process Flow

SAP CO Planning Process — Phases 1 and 2: annual cost estimation and monthly budget planning across cost centers, internal orders, profit centers, and plan line items

SAP CO Daily Transaction Process — Phases 3 through 7: daily actual postings for cost center accounting, internal orders, project costs, production order costing, and profitability analysis

SAP CO Periodic Transaction Process — Phase 8 Period-End Closing: Activity Price Calculation, Cost Splitting, Allocation Cycles, Template Allocation, Assessment to CO-PA, Profit Center Assessment, and Reconciliation Ledger

2) Hierarchy Structure

SAP CO Transaction hierarchy — parent-child relationships across all eight phases from standard cost estimation through period-end closing

3) ER Diagram

SAP CO Transaction ER diagram — cardinality between transactional objects across product cost planning, cost center accounting, internal orders, production order costing, and period-end closing

4) Transaction Process

Phase	Object	Integration	Planned	Actual	Prerequisite	Tr-Cd	Description	Practical Examples	Role
1 Product Cost Planning	Standard Cost Estimate [Created]	-	Standard Cost Estimate [Created]	-	Material Master, BOM, Routing	CK11N/CK40N	Calculate standard cost from BOM and routing	Calculate standard cost for all products in bulk at the start of the fiscal year	Cost Accountant
	Standard Cost Estimate [Marked]	-	Standard Cost Estimate [Marked]	Standard Cost Estimate [Created]	Standard Cost Estimate [Created]	CK24	Mark standard cost estimate as future cost	After reviewing the calculation result, mark as scheduled for April application	Cost Accountant
	Standard Cost Estimate [Released]	-	-	Standard Cost Estimate [Marked]	Standard Cost Estimate [Marked]	CK24	Update standard cost to material master	Update standard cost in material master on April 1	Cost Accountant
2 Planning	Cost Center Planning	-	Cost Center Planning	-	Cost Center, Cost Element	KP06/KP26	Create annual/monthly plan for cost center	Register annual labor and expense budget for manufacturing department	Cost Accountant
	Internal Order Planning	-	Internal Order Planning	-	Internal Order	KO12	Create planned cost for internal order	Set budget of 50 million JPY for new product development project	Cost Accountant
	Profit Center Planning	-	Profit Center Planning	-	Profit Center	7KE1	Create plan for profit center	Set annual revenue and profit targets by business division	Cost Accountant
	Plan Line Item	-	-	-	Operating Concern	KEPM	Post plan line item to CO-PA	Register sales plan by product and region	Cost Accountant
3 Cost Center Accounting	Cost Center Actual Posting	-	-	Cost Center Planning	Cost Center Planning	KB11N/KB21N	Post actual cost to cost center	Post electricity invoice to manufacturing department	Cost Accountant
	Activity Allocation	-	-	-	Activity Type, Cost Center	KB21N/KB23	Allocate activity quantities between cost centers	Allocate 10 hours of maintenance work provided to production line	Cost Accountant
	Reposting	-	-	-	Cost Center Actual Posting	KB11N/KB61	Transfer cost between cost centers	Transfer consumables expense posted to wrong department to correct department	Cost Accountant
4 Internal Order Accounting	Internal Order Actual Posting	-	Internal Order Actual Posting	Internal Order Planning	Internal Order Planning	KO04	Post actual cost to internal order	Post trade show participation expenses to sales promotion campaign order	Cost Accountant
	Internal Order Settlement	-	-	Internal Order Actual Posting	Internal Order Actual Posting	KO88/KO8G	Transfer internal order cost to settlement receiver	Transfer completed capital investment order cost to fixed assets	Cost Accountant
5 Project Cost Controlling	WBS Actual Posting	PS	-	-	WBS Element	CJ40/CN25	Post actual cost to WBS element	Post subcontract costs for construction project to WBS element	Project Accountant
	Project Settlement	PS	-	-	WBS Actual Posting	CJ88/CJ8G	Transfer project cost to settlement receiver	Capitalize completed building as fixed asset	Project Accountant
6 Product Cost by Order	Production Order Cost	-	-	-	Production Order	CO01/CO02	Calculate cost for production order	Collect material and processing costs on production order for Product A	Cost Accountant
	Overhead Calculation	-	-	-	Production Order Cost	CO43/KGI2	Allocate overhead to production order	Apply 10% factory overhead surcharge to production order	Cost Accountant
	WIP Calculation	-	-	-	Overhead Calculation	KKAO/KKAX	Calculate valuation of work in process	Evaluate incomplete production orders at month-end as WIP	Cost Accountant
	Variance Calculation	-	Variance Calculation	-	WIP Calculation	KKS1/KKS2	Calculate variance between standard and actual cost	Calculate 50,000 JPY variance against standard cost of 1,000,000 JPY and actual cost of 1,050,000 JPY	Cost Accountant
	Production Order Settlement	-	-	Variance Calculation	Variance Calculation	CO88/KO88	Transfer production order cost to settlement receiver	Transfer finished goods cost to inventory and variance to price difference account	Cost Accountant
7 Profitability Analysis	Actual Line Item	-	-	-	Operating Concern	KE21N/KE24	Post actual line item to CO-PA	Transfer revenue and cost by product and customer from sales document	Cost Accountant
	Profit Center Actual Posting	-	-	Profit Center Planning	Profit Center Planning	-	Post actual results to profit center (automatic)	Automatically transfer revenue and expenses by business division from FI document	Cost Accountant
8 Period-End Closing	Activity Price Calculation	-	-	-	Cost Center Actual Posting	KSII	Calculate actual activity price	Recalculate machine hour rate from actual costs incurred in the month	Cost Accountant
	Cost Splitting	-	-	-	Activity Price Calculation	KSS4	Split cost center cost by activity type	Apportion total cost center costs by activity type	Cost Accountant
	Assessment Cycle	-	-	-	Cost Splitting	KSU1N/KSU5	Allocate cost based on allocation rules using secondary cost elements	Allocate administrative department costs to manufacturing departments based on headcount ratio	Cost Accountant
	Distribution Cycle	-	-	-	Cost Splitting	KSV1N/KSV5	Distribute cost while retaining primary cost elements	Reallocate shared electricity costs to each department based on consumption ratio	Cost Accountant
	Template Allocation	-	-	-	Assessment Cycle, Distribution Cycle	CPT4	Allocate cost based on template rules	Automate complex allocation rules using templates	Cost Accountant
	Assessment to CO-PA	-	-	-	Template Allocation	KEU5	Allocate cost center cost to CO-PA	Allocate manufacturing department costs to product segments	Cost Accountant
	Profit Center Assessment	-	-	-	Assessment to CO-PA	4KEU	Allocate cost between profit centers	Allocate head office costs to each business division based on revenue ratio	Cost Accountant
	Reconciliation Ledger	-	-	-	Profit Center Assessment	KALC	Verify consistency between FI and CO	Adjust posting differences between CO allocation results and FI balance	Cost Accountant

What to Read Next

L1) Big Picture

ID	Category	Title
co-001	Overview	What is SAP CO?

L2-A) Master Data

ID	Category	Title
co-a01	Overview	SAP CO Master Data: Overview, Hierarchy & Relationships
co-a02-01	Master Data	SAP CO Material Master
co-a03-01	Master Data	SAP CO Cost Element
co-a03-02	Master Data	SAP CO Cost Element Group
co-a04-01	Master Data	SAP CO Profit Center Group
co-a04-02	Master Data	SAP CO Profit Center
co-a05-01	Master Data	SAP CO Cost Center Group
co-a05-02	Master Data	SAP CO Cost Center
co-a05-03	Master Data	SAP CO Activity Type Group
co-a05-04	Master Data	SAP CO Activity Type
co-a05-05	Master Data	SAP CO Statistical Key Figure
co-a06-01	Master Data	SAP CO Internal Order Group
co-a06-02	Master Data	SAP CO Internal Order
co-a07-01	Master Data	SAP CO Cost Component Structure
co-a07-02	Master Data	SAP CO Costing Variant
co-a08-01	Master Data	SAP CO Operating Concern

L2-B) Transaction

ID	Category	Title
co-b01	Overview	SAP CO Transactions: Process Flow, Hierarchy & Relationships 📍

Last updated on June 7, 2026

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SAP Consulting Knowledge

Title here

SAP CO Transactions: Process Flow, Hierarchy & Relationships

1) Transaction Process Flow

2) Hierarchy Structure

3) ER Diagram

4) Transaction Process

What to Read Next

L1) Big Picture

L2-A) Master Data

L2-B) Transaction

SAP CO Transactions: Process Flow, Hierarchy & Relationships

1) Transaction Process Flow#

2) Hierarchy Structure#

3) ER Diagram#

4) Transaction Process#

What to Read Next#

L1) Big Picture

L2-A) Master Data

L2-B) Transaction

1) Transaction Process Flow

2) Hierarchy Structure

3) ER Diagram

4) Transaction Process

What to Read Next