Click on "Create RFQ/PO" Button from Sales Order Header to create RFQ/PO and Smart Button to check created RFQ/PO

Wizard to Create RFQ / Purchase Order, Fill Default Lines from Sales Order Line with detail of Product, UOM, Qty Fields
Taxes Fetched From Product Configuration in Vendor Taxes

After Selection of Schedule Date, Based On Vendor Selection It will fetch best price from product configuration in Vendor Pricelist
It will Also Fill the Taxes with Fiscal Position Configured in Vendor's Form and Replace From Fiscal Position, If No Fiscal Position
Selected Then It Will Fetch Taxes From Product Form in Vendor Taxes, 15% Taxes Are Replaced From Configured Fiscal Position With 5%

Configured Fiscal Position in Vendor Form

Fiscal Position Configuration

[DESK0005] Customizable Desk (Custom, White) Vendor Pricelist Configuration

[E-COM09] Large Desk Vendor Pricelist Configuration

[FURN_8220] Four Person Desk Vendor Pricelist Configuration

On Onchange Of Product Quantity in Line, It will also change the Price from Vendor Price in Product Configuration

Newly Created RFQ from Sales Order, Set Create Checkbox to Purchase If Do not want to Make Changes, It Will Set
RFQ to Purchase Order Automatically

Smart Button For Created RFQ / Purchase Orders in Sales Order Form