Checkout cart settings typically refer to the configuration parameters that can be adjusted or customized in the checkout or shopping cart section of an e-commerce website.
Self Pickup Only means customers are required to collect their orders themselves from a specified pickup location. Delivery options are not available.

Method 1: Search “Checkout” in the search menu at the top of NMS > Scroll to find “Checkout Cart Setting”
Method 2: Go to My Sales > E-commerce Setting > Setting > Scroll to find “Checkout Cart Setting”

Enable the 'Self-Pickup Only' button to allow only self-pickup; delivery will be unavailable.