Hi, I am working project based company in UAE. so I just want to make sub expenses under a main expense. if any one have any idea please let me know.

You can create a list of sub-expense accounts under the main account to achieve your goal, Hassan.

If you haven't yet, let's set the main expense account first:

1. Go to the Gear icon and choose Chart of accounts.
   
2. Click the New button.
3. Enter an Account name.
4. Select Expenses as the Account type and pick the appropriate Detail type.
5. You also have the option to use the account for billable expense purposes.
6. Once done, hit Save.
   

To create the sub-expense account for your main expense:

1. Click the New button again.
2. Enter an Account name.
3. Choose Expenses as the Account type and select the appropriate Detail type.
4. Tick the Make this a subaccount option.
5. Pick the main expense as its Parent account.
6. Just like the main account, you also have the option to use this for billable expense purposes.
7. Hit Save.
   
8. Repeat these steps to create all the accounts for your sub-expenses.

After following the procedures above, you can then use these accounts in the Category column when creating an expense entry in QuickBooks.

Also, if you're using the Projects feature (available for QuickBooks Online Plus and Advanced versions), you can review this link: Add new transactions to a project in QuickBooks Online. It provides complete guidance on managing project-related entries in the platform.

You may also use this article as a future reference: Run a report in QuickBooks Online. It can help you get a proper snapshot of the specific data that you need to track in QuickBooks.

Please reach out to the Community forum again should you need further assistance.