import customer info from Zoho CRM to invoice

import customer info from Zoho CRM to invoice

Hi:

Have a quick question:
If I have 3 new customers in CRM today, and I want to import them into ZOHO Invoice account, so far I know I need to import all the customers (including the old customers and 3 new customers in CRM) to Invoice account.

Is that correct? What if I have thousands of old customers in CRM, because I need import those 3 new customers, I need to import all of them? Seems unreasonable.

May be I am missing something here.

Thanks.

James