Can I know what should I do if I received below message (Error code: -81624, type: INVALID_REQUEST) What does this mean?

Hi there, rozita-arscm.

This error occurs if there's an issue with the browser. You'll want to use an incognito window and do your tasks from there. Here are the keyboard shortcuts:

• Google Chrome: press Ctrl+Shift+N 
• Mozilla Firefox: press Ctrl+Shift+P 
• Safari: press Command+Shift+N

Also, let's clear the cache since it causes errors in QuickBooks Online. Lastly, make sure that the browser you're using is updated or use a different one.

Visit our QuickBooks Help page if you want tips and tricks in managing your business.

Keep on posting here if you have more questions. Stay safe!