Yes, you sure can! If you're making a custom item and do not want to post it publicly, here's how you do it:
Go to your dashboard then follow these steps:
- Go to products and services
- Click the blue edit button on the item you want to change (NOT quick edit)
- Scroll to the bottom “Other Options”
- You will see “Visible”
- Click on the drop-down menu and set to “Hidden”
Now you can send the URL to your customer to purchase at their convenience.