Mass Upload Invoice info via csv

Hi all,
May I know how to mass upload invoice details info via csv to axelor?

Thanks,
Andrew

From Application Config → Technical maintenance → Imports

Hi Axelor,
Thanks but it seems for invoice import, we will need to create movelines etc first?
And there is no product field in the csv file, so we are not able to link it.

Do you have any such documentation for invoice import function?
Thanks,
Andrew

Purchase Order ?