When adding recipients, you have the option to have them authorize themselves either when they are opening the send-out, signing the document, or both.
You have a few options for authorizing the recipient.
They can do it with a security question and answer, using their eID, or by having the recipient enter a 4-digit code before opening and/or signing the document.
How to add authorization for a recipient when opening or signing a document
Create a draft
Add your recipient
Slightly to the right under the recipient name you will see a padlock symbol next to the recipient name, click on it
Choose the authorization method of your liking
Click Save when done.

When authorization has been added the padlock will be green:

When no authorization has been added the padlock will be grey:

Password authorization
With password authorization, the recipient will have to answer a question you have entered with the correct answer. You can either choose to have them authorize on open or when signing.

SMS authorization
Available from plan Professional
With the SMS authorization, the recipient will receive an SMS with a unique code that they will have to enter into a popup window to be able to either view or sign the document.
When choosing the SMS option, make sure to add the recipient's mobile phone number to the contact before sending the document.

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EID authorization
Available from plan Professional
We currently support eID in these countries.
BankID - Swedish eID
BankID NO - Norwegian eID
NemID - Danish eID
NemID for erhverv – Danish eID
NemID nøglefil – Danish eID
MitID - Danish eID (new)
Finnish Trust Network - Finnish eID
Read more about eID here