We use Zoho CRM integrated into Zoho Books (included in our Zoho One subscription). Customers are onboarded through a sales process in CRM, and we use the Zoho-provided app link to move the accounts and contacts into Zoho books when an Estimate is created in Books. 

We cannot delete a contact in Books after this association is made.  However, to comply with the California Consumer Privacy Act (CCPA), we must delete all customer information on request. 

Has anyone found a solution to this issue?