API builder between zoho worpress and zoho books

Resume: I have a web based on wordpress. It’s a platform for medical treatments purpose in Spanish, powered mainly by wc appointments and wc frontend manager plugins. I need to finish my site, required developments: Build an API: role store vendor || shop staff, create it in zoho books. Same if its update/deleted create/delete a product in zoho books when created/deleted in woocommerce (associated with same vendor in zoho/wc) send orders in woocommerce to zoho books estimates, included the product and addons in the order and final price, associated with the salesvendor(woocommerce web has a marketplace plugin with vendors) and the customer(development already done) Update estimate if the payment in wc is completed Details: we sell medical(dental) treatments, and specials discounts for them by a subscription to our page(sort of medical inssurence). Its powered mainly by wc appointments, wc frontend manager ultimate and wc memberships/subscription. We have two kind of users, clients and professionals. Professionals users are logged in and interacts by wc frontend manager(they don’t have access to backend). In their dashboard they can see the shchedule and many other features, like send a treatment (treatment = WC order ( appointments + WC simple product with maybe addons)) to a customer. By default, the wc appointments plugin, only allows to send one appointment for each order. I developed a plugin to modify this, so the professional can select as many appointments as he needs and some addons to create the final price of the order. Then the clients can pay the order in their dashboard and with payment completed the treatment starts.