If a new Heeros customer has previously received e-invoices through an operator other than Opentext (formerly Liaison Technologies), the e-invoice transmission operator must be changed to Opentext when transitioning to Heeros services.
- The main user orders an e-invoice reception connection for the new customer using the Heeros Help Center's e-invoice order form. The customer must terminate the old e-invoice address with their previous operator as soon as possible after the new address is opened.
- Opentext adds the new e-invoice address for the customer to Tieke's e-invoice address register.
- The accounting office or customer sends supplier letters regarding the change of the e-invoice address, for example, utilizing the Materials section's template letter from Heeros Help Center.
- The customer makes a termination request for the old e-invoice agreement to the old operator and asks that operator to remove the old e-invoice address information from Tieke's pages (each operator manages their own data on Tieke's pages).
- If invoices are sent to an already terminated e-invoice address, the invoice sender will receive a notification that the e-invoice address is no longer valid. The new e-invoice address can be verified
- from the template letter sent to the supplier
- from Tieke's e-invoice address register
- directly from the customer.