Zoho books and whats app business automation

Hi There I need a complete automation solution for my supplies company, its currently using Zoho books and has whats app business setup and I wanted to get an automated process for customer registration, invoicing and quoting, on Zoho books and if possible link it to WhatsApp. The project can go in stages where 1stly the Zoho books automation is setup then the WhatsApp business then finally the integration between the 2