Hello there, @sophiedubber.

I take it that you're experiencing issues when accepting an invitation from your client in QuickBooks Online. May I ask what's stopping you from achieving your goal? Did you receive any error messages? If so, kindly provide us with more information about it. This helps us investigate further and determine the best action to take.

We're looking forward to your response to this. Just hit the Reply button so we can help you as soon as we can. Keep safe always!