Maintenance work will be carried out in the Self online service on Tuesday evening, 21 Jan 2025 starting at 6 pm. The maintenance break will last approximately 30 minutes. If logging into Self fails, please try using the service again later. We apologize for any inconvenience caused.

Invoicing address

We accept only e-invoices. The law obliges companies to send e-invoices. The FSHS’s electronic invoicing details are as follows:

OperatorE-invoicing addressOperator code
Maventa003702026378003721291126

Maventa does not currently have an interconnection arrangement with OP Financial Group (Osuuspankki). If you send your electronic invoices via OP Financial Group, please enter DABAFIHH as the operator code.

When an order is based on a valid contract, the purchaser’s name, any other purchase reference data and a contract number should be visible in the invoice details.

Our business ID is 0202637-8.

Electronic invoices can be sent by opening an e-invoicing account at www.verkkolaskut.fi