On Good Sign Billing Application's Privacy Page you can request and collect all the privacy and GDPR related information that Good Sign Billing Application is providing.
The privacy policy by is a legal document or statement that discloses how Good Sign Billing Application gathers, uses, discloses, and manges their customers' data.
The basis for Good Sign Oy sharing, adding, uploading, hosting, accessing or sending personal data out of Europe. Vendors can also add a description of their own impact assessment for data transfers.