The best practice for Customer Support is to make sure you really are resolving your user problems and not just closing tickets. To make sure you've solved your users' issues you can send a satisfaction (CSAT or NPS) survey after a support ticket is solved in Zendesk.
Here is how to set this up in Zendesk using SatisMeter:
Create a new survey in SatisMeter
2. In the survey editor customize the texts and colors to match your brand
3. In the survey editor choose the Email channel, set the survey live, and save the email template for Zendesk
4. Upload and use the SatisMeter survey template as one of the email notification templates. For more information, see Zendesk's support article Customizing your templates for email notifications
5. Set up the triggers in Zendesk, the action is to send out an email when a ticket is closed and choose the Survey template as the email notification. For more information, see Zendesk's support article About triggers and how they work
6. Set it live.