If you created shifts as available shifts, but need to make them unassigned shifts instead, you can make this change easily with the bulk edit feature (available in the Premium and Business subscriptions).

You can individually select shifts by hovering your mouse pointer over a shift to make the checkbox appear.

You can also use the events filter to only show available shifts.

Then click the Select All icon at the top left of the page.

Once you have selected the available shifts that you want to make unassigned, click the Edit icon (✏️) at the top left.

In the pop-up window, choose “Availability,” then choose “Not available.” Next, choose whether or not you’d like these shifts to be published or unpublished.

Not sure if you need available shifts or unassigned shifts? Check out this article.