Occasionally you may need to add custom field values to an existing response, perhaps because a respondent completed the survey using the web URL instead of the email invitation, or perhaps you launched the first round without custom field values and later launched with custom field values. You want to update the original set of invitations so that you can more easily conduct statistical analysis. You may also need to update custom field values, either because they were entered incorrectly or if they have changed.
SurveyMethods makes it easy to add or update values on individual responses from the Individual Results report. To do so, first log in to your survey account, find the survey you wish to update and click the Analyze icon () on that row.
Then choose the Individual Results report:
Navigate to the desired response and click Manage This Response:
In the Custom Field Values section, you can enter or update any or all of the values and then click Save.