When you need complex tax jurisdictions or already use a tax vendor, you connect a
partner tax app or your own tax engine. The TaxEngineAdapter Apex interface retrieves
information from the tax engine and evaluates the information to define tax
details.
Prerequisites for a Partner or Custom Tax Engine If you want to calculate taxes by using your own tax engine or by integrating the Billing TaxEngineAdapter Apex interface with a partner app, complete these prerequisites.
Configure Additional Tax Identification Details Send additional tax identification details to your external tax engine. Meet regional tax compliance requirements by storing tax identification and exemption information on the Billing Account and passing it to the tax engine.
Extend the Revenue Cloud Tax Extension Engine Enhance the existing tax interface by mapping additional fields for tax callouts. Use custom metadata types to send additional data in tax requests and persist more detailed information from tax responses.
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