This is the general purpose Prep Time for all items - if you want to set up Category Specific Prep time please follow this article instead
Prep time is the amount of time customers see it will take for their order to be ready when they select "ASAP". This shows on the order success page.
Making sure you have the right prep time is about setting customer expectations.
The default prep time customers see is 15 minutes. If you need more time, follow this guide.
Click Catalog.
Click Prep Time.
Enter the prep time you would like to show when customers select "ASAP". You can enter a number for Days, Hours, or Minutes.