How to make AR calculate tax on Secondary charges passed on sales order line?

Summary:

Standard functionality does not calculate tax on secondary chages such as freight on sales order line in AR invoice. The business requirement is that these needs to be taxed at the same rate as the shipped item. As per documentation in https://docs.oracle.com/en/cloud/saas/supply-chain-and-manufacturing/24a/faiom/overview-of-integrating-order-management-with-accounts.html#s20078437, it should be possible to achieve this through service mapping. Has anyone worked on such a requirement and help me with the mapping needed?

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Documentation mentions "To capture shipping charges as revenue and calculate tax on them: