Step 1: Click on Checkout, then click on Behaviour and Edit Behaviour.
Step 2: Click on Behavior tab. Enable the Require Pickup Point Selected button, if you would like to require the pickup point to be selected at your checkout.
Step 3: Once you are done, don’t forget to click on Save changes
You can set up to require that a pickup point is selected at your checkout by clicking on the Checkout tab in the menu of your Admin panel of the selected store.