We buying second hands items. Can we use to record this cloud service ? thanks

Hello there, eleias-gmail-com. Let me help you with recording the items in QuickBooks Online.

If you're trying to track inventory, you'll have to have the QBO Plus version. 

Once done, ensure to turn on inventory tracking. This way, you'll be able to record inventory items. I'll show you the process.

To turn on inventory:

1. Go to the Settings icon and select Account and settings.
2. Choose the Sales tab.
3. Click on the Edit pencil icon in the Products and services section.
4. Turn on Show Product/Service column on sales forms.
5. Turn on both Track quantity and price/rate and Track inventory quantity on hand.
6. Select Save and then Done.

Now you can add your items into QBO. You can check this article for detailed steps: Add product and service items to QuickBooks Online.

Moreover, I'm also attaching these links here to guide you along with other tasks like processes purchases and sales: 

• Create invoices.
• Enter and manage expenses in QuickBooks Online

If you mean something else, please don't hesitate to add them below. I'll be sure to help.