Can a connect my sales app directly with quick books online ?

Which sales app?

Welcome to the QuickBooks Community, @amr-iklix-ae. 

I recognize the importance of connecting the My Sales App to QuickBooks for the success of your business. Currently, this app is unavailable for integration.

For now, I recommend looking for a third-party app that can consolidate with QBO. This way, it'll help you with the customer's purchase and delivery online

To look for an app, here's how:

1. On your QBO account, click Apps in the left menu.
2. Go to the Finds Apps tab.

       3. In the search tab, type in the app you're looking for
 

You can refer to this article if you need steps on how you can view the status of your sales transactions to manage your income in QBO: View sales transactions in QuickBooks Online.

Drop a comment if you have more questions about syncing data or integrating an application. We'll be around to provide additional guidance to the process. Have a great day ahead.