Token protection |

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This security addin will protect our survey using unique token generated using the token generator.
- Available Tokens is the number of token available for use.
- Used Tokens is the number of token that have been already used. A token can only be used once.
- Allow Access To Valid Tokens Only we can open the survey to respondent who don't have any token. If this option is activated respondent without token will be able to take the survey several times while respondent with token will only be able to submit once their answers.
- Token Source Variable Name is the variable name from which FeedbackServer will look after in the querystring and session to see if a token has been set. If nothing is set or no value is found inside the variable an interface will be shown to the user to enter his token.
This feature is generally used along with the Emailing Invitation Features as you can include a link in your invitation that would have following parameters : http://www.mydomain.com/fs.aspx?surveyid=[--surveyid-]&token=[--invitationtoken-]
In this case the source variable name is "token".