Good day, zwenigroup6.
In the mobile version of QuickBooks Online, you can add a regular product or service item.
Here's how:
- Click the Hamburger (indicated by 3 horizontal lines) icon.
- Tap the Products & Services box.
- Select the + icon and add the new product or service details.
- Tap Save.
To add a stock item, you'll want to log in to your QuickBooks Online account using the web browser. I've got this article for the instructions: Add stock products in QuickBooks Online.
I'm just a few clicks away if you need anything else. Take care.
