Yes — when you delete responses from the Response Viewer, the corresponding quota slots are automatically freed.
For example, if your quota shows 3/10 and you delete one completed response that was occupying a slot, the quota will automatically update to 2/10 once refreshed.
Screenshot for reference: https://app.screencast.com/Qt2Jk0TmQiY6v
To ensure the update reflects immediately:
Go to Survey → Logic → Advanced Quota Control.
Click Refresh on the quota screen to re-calculate the current counts.
Screenshot for reference: https://app.screencast.com/EAN0kHy9bIwnC
This helps maintain accurate quota tracking even after deleting responses for data cleaning or adjustments.
Please refer to this help file for response viewer: https://www.questionpro.com/help/response-viewer.html
Note: Responses/data once deleted will be permanently deleted and cannot be retrieved.