Explanation
To implement split valuation, you must do the following:
Customize valuation categories and valuation types, which are the key elements of split valuation. A valuation category defines the criteria for splitting the valuation of a material, such as origin or quality.
A valuation type is a subdivision of a valuation category that represents a specific stock type, such as country of origin A or B. You can customize valuation categories and valuation types in Customizing under Materials Management -> Valuation and Account Assignment -> Split Valuation -> Configure Split Valuation.
Create additional accounting data for the relevant materials, which means that you must maintain the valuation data for each valuation type at valuation-area level. The valuation data includes the valuation price, total stock quantity, and total stock value for each valuation type. You can create additional accounting data for the relevant materials in the material master under Accounting 1 view.
References: Split Valuation in Inventory Management | SAP Help Portal