Tax Amount at Trade receipt accrual doesn't match SFO AP & AR tax for a Transfer Order accross BU.

Summary:

Tax Amount at Trade receipt accrual doesn't match SFO AP & AR tax for a Transfer Order across BU.

In our business use case, we perform transfer material between 2 Inventory Organization belonging with Expense destination Type. The Inventory organizations belong to different BU's and are configured with SFO Inter-company invoicing with 'Calculate tax for trade receipt accrual' enabled.

We are able to perform Transfer Order, ship inventory, receive the Transfer Order, generate Cost & receipt accounting and also see the Tax calculated at receipt accrual. Even the Inter-company AP Invoice and AR Invoice generated with tax on AP and AR matching. But, the issue we are facing is with Tax calculated at Receipt accrual. The Tax Amount is not matching the Tax on a AP or AR invoice (Please note the 3rd party tax vendor for AP and AR is 'VERTEX').