UPM requires primarily e-invoices.
An electronic invoice includes the same information as a paper invoice and consists of invoice data and images. It is directly received by a processing system, handled automatically without any manual processing and archived in the same way as a paper invoice, but in a more cost efficient way.
Please, visit in UPM E-invoicing page here and choose the best option for you.
More information of purchase invoicing, please contact UPM Sourcing operations firstname.lastname@example.org