Message type: E = Error
Message class:  CA_TTE - TTE Messages 
Message number: 457
Message text: Maintain valid product taxability for product &2
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
From TTE Simulation
Choose the relevant Input Document.
Choose the relevant product.
Choose the tabstrip <ZK>Product Taxability</>.
Use F4 to select a defined product taxability.
Choose <ZK>Save</>.
To update Customizing settings, choose <DS:SIMG.SIMG_REFRESH>Immediate
Customizing Refresh</>.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CA_TTE457, which states "Maintain valid product taxability for product &2," typically occurs in the context of tax determination processes within SAP, particularly when dealing with product taxability settings. This error indicates that the system cannot find valid taxability information for the specified product.
Cause: Missing Taxability Data: The product in question does not have the necessary taxability information maintained in the system. Incorrect Configuration: The tax configuration for the product may not be set up correctly, leading to the inability to determine the applicable taxes. Product Master Data Issues: The product master data may be incomplete or incorrectly maintained, lacking the necessary tax classification. Tax Jurisdiction Issues: The tax jurisdiction settings may not align with the product's taxability requirements.
Solution: Maintain Product Taxability: Go to the product master data in SAP and ensure that the taxability information is correctly maintained. Navigate to the relevant transaction (e.g., MM02 for material master) and check the tax classification
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