There are two things to take note upon accepting the invitation link for your accountant. Let me discuss them with you so you can get your accountant added successfully to your QuickBooks Online account.
First, upon accepting the invitation link, your accountant will be asked for a user ID and a new password. This will be used upon logging in to QuickBooks online as your accountant.
A security key will be sent to the email used upon accepting the invitation link to verify the email.
Secondly, if your accountant accepts the link with an existing online account in QuickBooks, the password should match to the user ID. This is to verify that the login credentials are true and match with an online QuickBooks account.
I have sent my accountant an invitation to my online quickbooks account and it asks her for a password which she doesn't have. What do I do?
She needs to have an Intuit ID. If she has never created one, on the invite there should be a link for her to create one. If she DOES have one, then it will ask for her password. If she THINKS she has one but forgot the password, she can have a reset link sent to her email.