You can get your Posti transaction codes by filling in the following form: Create transaction codes.
Fill in and submit the form only if you can act as your company’s administrator.
On the form, the contact details of the person who will receive your company's administrator rights in the Posti Service Portal are entered into the administrator's details section. The company's authorized signatory or apparent authority will be informed of the created administrator’s transaction codes.
What should I do if I’m not my company’s administrator for Posti's electronic services?
If you yourself cannot act as the company's administrator, ask the person who can act as the administrator to apply for Posti transaction codes by filling in the form. After receiving the codes, the administrator can authorize more online stamp store users for the company in the users management of the Service Portal.