Before you map items to Avalara tax codes in Microsoft Dynamics GP, enable item class mapping.
- In Microsoft Dynamics GP, go to Microsoft Dynamics GP > Tools > Setup > System > Avalara AvaTax > Configuration.
- Select General.
The General Options tab displays.
- Select Enable Item Tax Class Mapping.
- Select Taxability for both Item Class Mapping and Tax Code Mapping.
If both an individual item and the class it belongs to are mapped to an Avalara tax code, AvaTax for Microsoft Dynamics GP uses the tax code mapped to the item. This lets you set up mixed taxability in an item class.