Thanks for joining this conversation, @SuperStar777.

The steps shared by my colleague above should help manually change the language in QuickBooks Online (QBO). To isolate this, try to use a private browser (incognito). This will help check if the browser is already full of frequently accessed page resources, causing some unusual responses.

Here's how:

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox).
• Control + Option + P (Safari).

Once done, follow the same steps again to double-check. If it works, return to your default browser and perform a clear cache to refresh the system.

I can see how having the option to include a default Arabic language in QBO would be helpful for you and your business. I'll pass along your suggestion to our Product Developers. They're always looking for ideas to consider on how to improve the program.

In the meantime, I recommend visiting our Blog site. This is where we share recent happenings and future developments, such as updates to newly added features.

Reach out to me in the comment section below if you have any other questions or concerns, and I'll get back to you right away. I'm always here to help. Have a good one!