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SAP Message C+302 – Material ledger not active in plant

When trying to start a job production startup of material ledger in transaction CKMSTART, the error message C+302, Material ledger not active in plant, might occur

SAP Message C+302 - Material ledger not active in plant : Error material ledger not active in plant ABCD in CMKSTART
Error material ledger not active in plant ABCD in CMKSTART
SAP Message C+302 - Material ledger not active in plant : Error message description C+302
Error message description C+302

To solve this error, go to the customizing IMG, transaction SPRO, and navigate to Controlling > Product Cost Controlling > Actual Costing/Material Ledger > Activate Valuation Areas for Material Ledger

SAP Message C+302 - Material ledger not active in plant : Activate valuation areas for material ledger in SPRO
Activate valuation areas for material ledger in SPRO

Here, choose the Activate Material Ledger

SAP Message C+302 - Material ledger not active in plant : Activate Material Ledger option
Activate Material Ledger option

Scroll to the corresponding Valuation Area, and check the Material Ledger activated

SAP Message C+302 - Material ledger not active in plant : Activation of Material ledger for the valuation area
Activation of Material ledger for the valuation area

Enter a Price Determination as well, and save

SAP Message C+302 - Material ledger not active in plant : Selection of a price determination
Selection of a price determination

Back in CKMSTART, it is now possible to start the job production, by entering the requested background job parameters

SAP Message C+302 - Material ledger not active in plant : Background job startup
Background job startup

A confirmation message should then appear

SAP Message C+302 - Material ledger not active in plant : Background job creation confirmation
Background job creation confirmation