For a Revenue Cloud project where a product's taxability depends on a custom field that holds industry information, the appropriate solution is to use automation to set the Tax Rule based on the value of the custom field. This approach allows for dynamic application of tax rules to products based on industry-specific requirements, ensuring that the correct tax treatment is applied during the quoting and invoicing processes.
Automation could involve using Process Builder, Flow, or Apex to update the tax rule assignments on products or quote lines based on the specified industry criteria. This ensures that products are taxed correctly according to the industry-specific regulations captured in the custom field.