I want to create chart of account with account numbers, but this was unsuccessfully .

Before that, could you clarify what you mean by unsuccessful? Are you not seeing the option to enter the number, or are you receiving a specific error message?

First, ensure you turn on the feature in your Account and settings. Once it is enabled, you will have a dedicated field to enter those account numbers in the chart of accounts easily.

Here's how:

1. Go to Settings and select Account and settings.
2. Select the Advanced tab.
3. Select Edit in the Chart of accounts section.
4. Turn on Enable account numbers. If you want account numbers to show in reports and transactions, select Show account numbers.
5. Select Save and then Done.

For more details, you can review this article: Use account numbers in your chart of accounts in QuickBooks Online.

Please reply and let me know if you need any more help getting your accounts organised.