Creation of Invoice in one single currency

Hi,

If there is a Buy Shipment with multiple cost lines having different currencies and we want to create invoice with only one currency i.e. EUR for all the lines of shipment cost. Let us know how to achieve this.

For example,

Buy Shipment 1 --> 103.49 EUR

Cost Line 1 --> 100 EUR

Cost Line 2 --> 300 INR

Invoice 1 --> 103.49 EUR

Cost Line 1 --> 100 EUR

Cost Line 2 --> 3.49 EUR