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16.1.2020 12 pm: Forms related to invoices and reminders of payments are currently not available at the Self-service. The disturbance will be mended within week 5. Contact your local service unit in urgent matters. We regret the inconvenience caused.

We prefer invoices to be sent electronically. 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.

The purchaser’s name and any other purchase reference data should be visible in the invoice details.

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