Hi there, @omar27. Currently, e-invoicing in QuickBooks Online (QBO) isn't available in your region. For now, you can look for a third-party application that's compatible with our system.
In QBO, please go to Apps > Find Apps, then enter the app's keyword in the Search field. When you find one, click the application to integrate it.
Let me know if you have additional questions by leaving a comment below.