A signature requiring strong authentication is successful only if the recipient has one of the following supported authentication methods: 

• Finnish personal ID and Finnish bank IDs or mobile ID
• Swedish personal ID and BankID
• Danish personal ID and NemID or MitID
• Norwegian BankID
• Dutch personal id and iDIN 

What if the signer does not have a supported authentication method? 

If the signer does not have any of the supported authentication methods, the signature can be requested without strong authentication using a light signature. Instructions for sending a light signature invitation can be found in our guide: How do I send an invitation with strong authentication or a light signature? 




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