This feature applies to both Salesforce and Hubspot. No changes will be made to your CRM data - changes will only be made to your accounts in N.Rich
The Automatic Sync of CRM Data feature in N.Rich is an essential feature designed to create associations between Salesforce/HubSpot accounts and N.Rich accounts. When enabled, this feature will check if N.Rich accounts exist in your CRM and if so, it will create an association between the accounts and sync account data between them for each matched account. This helps standardise account information between your CRM and N.Rich.
Under Settings > CRM, toggle the "Automatically sync CRM Data"
This sync runs daily.

Account ID: Unique identifier for the account in your CRM
Account Name: Name of the account
Country: Geographic location of the account
Account association data (CRM name, id and link) are displayed in N.Rich and visible in the Analytics dashboard, Account analytics and Account data exports. Additionally, the owner of the CRM account owner becomes visible on the Account Analytics. Changes made to your CRM data will automatically sync to your accounts in N.Rich.
The "automatically sync CRM data" toggle is a prerequisite for
Enabling CRM Stages
Pulling Opportunity data from your CRM
Pushing of Account engagement data to your CRM
Enabling the Account Segment Push feature (HubSpot only)