Comoany purchases

Thanks for explaining your issue, @zmkarim. I can share some steps that will surely help you in keeping track of your company purchases.

If you treat this product as inventory, you can easily add them to the Product and Services page. Here's how to do it:

1. Sign in to your QuickBooks Online (QBO) account.
2. Click the Sales menu and choose Product and Services. 
3. Enter the necessary information such as Description, Sales price, Income account, Purchasing information, Cost, Expense account, and Preferred Vendor.
4. Once done, select Save and close. 

To get more information about the process, you can visit this link: Add product and service items to QuickBooks Online. It comprises steps on how you can edit and change the type of items you entered.

Then, whenever your customers buy these products from you, you can create a sales receipt or invoice.

With regards to your concern about entering fuel expenses to QBO, you can refer to these steps:

1. Click the + New button and select Expense.
2. Select the vendor, in the Payee field.
3. In the Payment account field, select the account you used to pay for the expense.
4. From the Payment date box, enter the date for the expense. Then, select the payment method.
5. Select the Category details if you use an expense account to track fuel expenses. If it's specific products and services, enter them in the Item details section.
6. Input the Amount.
7. Once done, select Save and close.

To know more about this, check out this link: Enter and manage expenses in QuickBooks Online. 

I've also attached this helpful article to further guide you in recording products you buy from your vendors: Create and send purchase orders in QuickBooks Online.

You may also want to run inventory reports in QBO to keep track of the products you buy and sell.

I'd be glad to help you out again if you need further assistance in entering purchased products you resell to your customers. Just leave a comment below and I'll get back to you as soon as possible.