You shouldn’t be getting duplicate responses.

Each survey you send via email is tied to a particular response, therefore, if they select 9 the first time and 10 on the second. You should only see 10. The first response will be overwritten.

Interesting - We’ve never experienced that in our surveys before and have always received duplicate responses. Is there a certain setting that you enable for this? Unfortunately, we aren’t able to use the “Prevent Multiple Submissions” setting due to how our URLs are built.

Try to look into settings?

1. Survey option - “Incomplete responses”. A short duration may cause incomplete response to be treated as a response.
2. Email Distribution - multiple completes.

Hi @sklock ,

Duplicate responses shouldn't be occurring.

Avoid receiving duplicate responses by implementing response authentication features. This prevents respondents from accessing the survey multiple times using the same email invite. Authentication methods like password protection or restricting access to authenticated users can be set up for this purpose.

Please go through with the below link:

https://www.qualtrics.com/support/survey-platform/survey-module/survey-options/survey-protection/

Thank you!

Unfortunately, we have an ongoing survey where we need to enable respondents to take the survey multiple times throughout the year. However, we don’t want respondents to be able to take a survey from a singular email multiple times (e.g., receive the survey on Monday and take it on Monday, but also go back to the same email again on Tuesday and retake the survey).