Hi There,
Thanks for reaching out to us.
As per my understanding, you want to login into your WordPress site using the credentials of your CRM, Also, you want to enable registration on the CRM itself and new users should be able to authenticate themselves using the credentials of the CRM. Please correct me if I’m wrong.
Can you please let me know which CRM you are using? So that I can guide you accordingly.
Thanks,
Prashant Khurana