I want change my quo language its says "You and khalid alsaady were working on this at the same time. khalid alsaady finished before you did, so your work was not saved."

I appreciate you bringing this to our attention. I'm here to help clarify the situation so you can successfully change the language settings in your QuickBooks Online (QBO) account, Khalid.

In a multi-user setting, users can save their activities seamlessly as long as they're working on different tasks. 

This means that if you and another user are both trying to modify the language settings, only one of you can successfully save the changes at a time. In this situation, a notification will alert both of you that you are working on the same task.

To avoid an overlap, I recommend collaborating with the other users to ensure that each other is informed. Once one user completes the change, the other can proceed without overlap, and secure a smooth transition.

To further support you in your QuickBooks journey, I encourage you to explore these articles. They provide detailed information and step-by-step guidance on effectively working with your invoice, managing payments, and customizing sales forms:

• Create invoices in QuickBooks Online
• Record invoice payments in QuickBooks Online
• Customize invoices, estimates, and sales receipts in QuickBooks Online

If you have any further questions about adjusting settings or preferences in your QBO account, please feel free to reach out. I’m here to help you navigate these changes. Keep safe.