Thanks for reaching out to the Community, @dso0216. I'm here to lend a hand with accepting an Account invite.
Both QuickBooks Online (QBO) and QuickBooks Self-Employed (QBSE) offer access to Accountant Users. The steps are similar, but somewhat different, and am including articles with additional information for both products:
I suggest reaching out to your client to ensure that they have the correct email. I'm also including an article that covers troubleshooting a person not receiving the invitation: Why Did my Invited Users Not Receive Their Email Invitations for QuickBooks Online?. While the article is designed for QBO, much of the information and steps are relevant for QBSE.
These resources are a good place to begin when not seeing an invite from a client.
Please feel free to let me know how it goes or if I can be of further assistance. Cheering you to continued success.
