What Tables Get Effected When A New User Is Created In Ms Crm?

When CRM creates a new user, it writes data to three different tables: [MSCRM_CONFIG].[dbo].[SystemUserAuthentication] [MSCRM_CONFIG].[dbo].[SystemUserOrganizations] [XX_MSCRM].[dbo].[SystemUserBase] The steps for creating the user in CRM is as follows: The first table is populated as soon as you press ‘Save’. Amongst other data, the users GUID in Active Directory is added to the table. Next it tries to bind the user to the chosen organization. Lastly CRM populates the table in wich is used to display CRM users in CRM.