How to load External Tax line during Invoice Load

Summary:

We have this situation, we are bringing invoice with tax details from external source

Invoice Line 1 > 1000 - Line Type = STANDARD

Invoice Line 2 > 70 - Line Type = TAX

We want to bring them as it is and no additional Tax calculation is required after invoice is load with FBDI. Do you have any suggestion how to handle this business case?

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