New users unable to set password as error come ,The feature you've requested is temporarily unavailable

Hi anju-ozonegp-com,

Welcome to Community!  It's important that you're able to mange users and send invitations to your team in QuickBooks Online.  I'd be glad to assist!

The error 'The feature you've requested is temporarily unavailable', has been a previous concern for other QuickBooks Online users and was investigated by our Development Team.  However, it has been recently closed.  Notations on the investigation suggest clearing cache on the browser, restart your system and then proceed to accept the invitation following the prompts.  In addition, I recommend having the users right click on the invitation in their email, then open it in a private or incognito browser.  They'll also need to make sure their browser has javascript and cookies enabled.

If the issue persists, please don't hesitate to contact us.  It would be our pleasure to work with you directly and look further into this from our end.  It's important that you're able to add users to your account without further delay and we'd love to help!

Schedule a Callback or start a Chat: click (?) Help in the upper right in QuickBooks Online > enter "Contact support" > hit Contact Us > provide a brief summary of your situation > hit Let's Talk > choose Get a callback or Start a Chat.
Social Media: Facebook, Twitter, and Instagram.
Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

If any other questions or concerns come to mind, feel free to reach back out.  We'd be happy to help!