Using WP Fusion, it’s possible to sync a user’s user name and password to their contact record in your CRM.
You can then set up WP Fusion on a different WordPress site, and use WP Fusion to pull the latest user name and password from your CRM, effectively keeping your customer logins in sync across two or more WordPress sites.
To set up the integration, first navigate to the Contact Fields tab and click the check boxes next to Password and Username. Then go to the General Settings tab and make sure the checkbox next to the Push option is checked.
Now, when a user creates an account or updates their information, their username and password will be synced to to your CRM. You’ll then want to configure a webhook to push the information to the other site(s).