How to send the registered user email to SalesIQ so that the user does not have to enter the email again when initiating a chat.

How to send the registered user email to SalesIQ so that the user does not have to enter the email again when initiating a chat.

I use SPA for my business and whenever users chat with me they always need to enter their email.
I would like to know if there is a way to automatically fill in the emails of registered users?

I've checked the documentation and it seems that only the API is provided and after many attempts I can't use the APi.

I would like to know how I should configure it using JS (code below)? For example in Index.html?

window.$zoho.salesiq && (window.$zoho.salesiq.ready=function()
                                    { $zoho.salesiq.visitor.name("User");
                                      $zoho.salesiq.visitor.email("Email");
                                    }),

Thanks
    Zoho Marketing Automation
      Zoho Mail - CRM Integration

              Zoho Pagesense Resources

                Zoho SalesIQ Resources



                      Zoho TeamInbox Resources

                        Zoho DataPrep Resources



                          Zoho CRM Plus Resources

                            Zoho Books Resources


                              Zoho Subscriptions Resources

                                Zoho Desk Resources

                                  Zoho Projects Resources


                                    Zoho Sprints Resources


                                      Qntrl Resources


                                        Zoho Creator Resources


                                          Zoho WorkDrive Resources




                                              Zoho Campaigns Resources

                                                Zoho CRM Resources

                                                        Design. Discuss. Deliver.

                                                        Create visually engaging stories with Zoho Show.

                                                        Get Started Now