Migration to S/$ Hana

[piyush_kr]

Can we introduce a new currency type during SAP S/4HANA migration?

[JonathanEemans]

Is it a greenfield (new implementation), brownfield (SAP ECC conversion) or bluefield implementation (hybrid approach that selectively migrates data and processes from SAP ECC)?

[divyeshSAP]

Hello @piyush_kr ,

Aspect	Details
Possibility	Yes — you can introduce a new currency type during or after SAP S/4HANA migration. The approach depends on whether it’s a Brownfield (system conversion) or Greenfield (new implementation) project.
Common Currency Types	10 – Company Code Currency (Local) 20 – Controlling Area Currency 30 – Group Currency 40+ – Custom / Freely Defined Currency Types
Migration Approach: Greenfield (New Implementation)	- New system setup allows defining all currency types freely. - No restriction since historical data is not migrated. - Define currencies in configuration (OB22, FINSC_LEDGER, FINSC_FISCYEAR).
Migration Approach: Brownfield (System Conversion)	- Possible to add new currencies (e.g., Group Currency) using SAP’s currency conversion process. - Requires data conversion and recalculation of historical data. - Executed via SAP guided tools such as FINS_CURRENCY.
Tool / Transaction	FINS_CURRENCY – SAP’s Currency Conversion tool for adding new currency types post-migration.
Key SAP Notes	2344014 – Currency Conversion in SAP S/4HANA 2549494 – Adding Additional Currency in Universal Journal after Migration
Impact Areas	- General Ledger (ACDOCA) - Asset Accounting - CO-PA (Profitability Analysis) - Material Ledger - Group Reporting
Configuration Adjustments	- Ledger setup – FINSC_LEDGER - Currency settings – OB22 - Currency translation – OB08, OBBS
Best Practice	- Introduce new currency before migration if possible. - If added post-migration, first test in a sandbox or quality system. - Validate balances, ledgers, and reports after conversion.
Risks / Cautions	- Impacts historical ledgers and financial reports. - Requires system backup and reconciliation across ACDOCA, Asset Accounting, CO, and Material Ledger.

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Divyesh