Technical information about e-invoicing
|Widni Oy (business ID)
||Open Text Oy
We primarly accept online invoices.
If you are not able to send e-invoice, you can send PDF invoice via email to: firstname.lastname@example.org
- Each PDF attachment should contain only one invoice
- The total e-mail size connot exceed 10Mb
Please send paper invoices to the address below :