In Orders App, you don't have to add all your products and inventory. The app automatically learns about the products you sell from the messages your customers send.
If you still want to add products, here's how. Adding products makes it easier for your customers to place orders through your store URL.
Open your product listings
Open Orders App and tap the Settings tab (the gear icon at the bottom). Then tap Manage.

Tap Products.

Tap Product listings. This is what customers can order from your store page.

You'll see all your products. Tap the + icon at the top right to add a new one.

Add product information
Enter the product Name. This is the only required field. You can also add its Size and Price.
If you need to include more information, tap + Add details.

Under Detail Name, add a title for the detail. Under Detail Value, add the information for this product. In this example, we've added Toppings with the value Chocolate chips. Then tap Add Detail.

The new detail now shows on the form with the other fields. When you're finished, tap Save at the top right. Your new product will be added to your product listings, and customers can order it right away from your store page.

Tip
A detail you add here also shows up in Product fields (Settings > Manage > Products), so you can fill it in for your other products too. To learn more, see How to edit product fields?