How to Create Stand alone voucher - 9.1.2

Hello,

Setup:

Landed Cost rule has 2 lines ( Line 1 with NBT Tax and Line 2 with VAT Tax). Due to Incorrect Setup in Landed cost rule, VAT is updated as zero in F43121.

1. Purchase Order is created with Landed Cost attached.

2. Purchase Order is received into stock without applying Landed Cost.

3. Via P43214, LC is applied to the entire Purchase Order, due to incorrect, VAT is updated with zero amount and NBT Tax is updated correctly.

4. During 3 way voucher, Receipt Document# belongs to VAT is not showing up.

Now the question is,

Without reversing the purchase order, how an voucher be created for VAT Tax line.