Message type: E = Error
Message class:  IW - Order Processing 
Message number: 840
Message text: No valuation types are defined for material &1 in plant &2
You have created a refurbishment order for the
<DS:GLOS.material>material</> &1&. Neither <DS:GLOS.batch>batches</>
nor <DS:GLOS.valuation_type>valuation types</> are defined for this
material in plant &2&.
The system allows the refurbishment for this material.
For this material, you can only enter <DS:GLOS.plant>plant</> and
<DS:GLOS.storage_location>storage location</> in the section
<ls>Refurbishment</>.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message IW840 "No valuation types are defined for material &1 in plant &2" typically occurs in the context of maintenance or inventory management when trying to perform operations related to a material that does not have the necessary valuation types defined in the system. This can happen in various scenarios, such as when creating a maintenance order, performing a goods movement, or executing inventory transactions.
Cause: Missing Valuation Types: The primary cause of this error is that the material in question does not have any valuation types defined for the specified plant. Valuation types are used in SAP to differentiate between different stock types (e.g., unrestricted stock, quality inspection stock, blocked stock) for a material. Material Master Configuration: The material master record may not be properly configured for the plant in question. This could be due to missing data in the material master or incorrect settings in the valuation area. Valuation
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