Concluding the series here’s Part 4/4 where we look at (side-by-side) TCODES for Internal-Orders (IO) and Project-System -WBS.

For link to previous Parts : Part-1, Part-2, Part-3

When shifting users from Internal Orders (IO) to Project System WBS, it helps a lot to provide a side-by-side mapping of T-codes/Fiori apps.

Here’s a comparison table:

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Internal Orders vs Project System (WBS) – T-Codes & Fiori Apps

Business Process	Internal Orders (IO)	Project System – WBS
Master Data Creation / Change	KO01 – Create IO KO02 – Change IO KO03 – Display IO	CJ20N – Project Builder (Create/Change/Display WBS) CJ01 – Create Project Definition CJ02 – Change CJ03 – Display
Planning Costs	KP06 – Cost Planning IO KPF6 – Enter Plan Costs	CJ40 – Cost Planning WBS CJ42 – Change Cost Plan
Posting Actual Costs	Standard FI/MM/SD postings referencing IO	Standard FI/MM/SD postings referencing WBS
Commitments (PR/PO Tracking)	KOB2 – Commitments: Internal Order	CJI5 – Commitments: WBS Element
Actual Line Item Report	KOB1 – Actual Line Items IO	CJI3 – Actual Line Items WBS
Budgeting / Availability Control	Limited (mostly via Funds Management)	CJ30 – Maintain Budget CJ31 – Display Budget CJ32 – Change Budget
Settlement	KO88 – Actual Settlement: IO	CJ88 – Actual Settlement: WBS
Period-End Closing	KO7x (period-end, assessments, settlements)	CJ8G – Period-End Closing for WBS KKA2 – Results Analysis (WBS)
Reporting (Classic)	S_ALR_87012993 – Order Report KOB1, KOB2	S_ALR_87013558 – Project Report CJI3, CJI5, CJ74
Fiori Apps	“Manage Internal Orders” “Display Line Items in Order”	“Project Control (Overview)” “Project Builder” “Project Cost Report – WBS” “Commitments for Projects” “Settlement of Projects”

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✅ This crosswalk table helps end-users quickly relate their current IO process to the equivalent PS WBS process in S/4HANA.