Tax Line import through Interface - putting Holds

Hi,

We are importing AP Invoices through Interface, we are getting Tax holds when we import the Tax line without Prorating across Item lines, any idea how to resolve this?

e.g.

line-1 ITEM amount=200

line-2 ITEM amount=100

line-3 TAX amount=60 tax_classification_code=100-STD prorate_across_flag=N

when the invoice is imported and validated, system is putting Holds "Tax Variance" and "Tax Amount Range" (here only 2 tax distributions created)

But for the below invoice, system is not putting any holds and it's getting validated correctly (here 4 tax distributions created)

line-1 ITEM amount=200

line-2 ITEM amount=100

line-3 TAX amount=60 tax_classification_code=100-STD prorate_across_flag=Y