Delete all data for sandboxes

Is there a way to delete all the data in a sandbox, similar to Delete all test data in Test mode? If not could that be added?

The reason that we are interested in this feature for sandboxes as well is to allow us to test code that seeds and manipulates products without having to update our publishable and secret keys (and webhook API key) by destroying and creating a new sandbox.

+1 for this feature, exact same usecase

Hi there, this functionality does still exist for Sandboxes! While you are in the sandbox, open up Workbench. On the left side of the Overview tab you will see a section for Test data with a button that says Review test data. Clicking that will allow you to delete the test data in your sandbox.