KakaoTalk App link

I am currently making an application for both ios and android platforms, including customer care by chatting via Kakao. I want to have the following features: if the customer clicks on the Kakao icon, my app will open Kakao and go to the right chat with customer care’s Kakao nick . Please tell me if there is any code to integrate like that

현재 카카오를 통한 채팅을 통한 고객 관리 등 iOS와 안드로이드 플랫폼 용 앱을 만들고 있습니다. 다음 기능을 원합니다. 고객이 카카오 아이콘을 클릭하면 내 앱이 카카오를 열고 고객 지원의 카카오 닉 닉과 함께 오른쪽 채팅으로 이동합니다. 그런 통합 코드가 있는지 물어보세요

Hello,
Kakaotalk channel provides a chat service with customers.
Introduction: https://business.kakao.com/info/kakaotalkchannel

And if you have a Kakaotalk channel, you can link your app to your Kakaotalk channel chat by Kakao SDK.
Here is the documentation which describes how to link Kakaotalk channel chat to your app.
Android: https://developers.kakao.com/docs/latest/ko/kakaotalk-channel/android#add-chat
iOS: https://developers.kakao.com/docs/latest/ko/kakaotalk-channel/ios#add-chat
Javascript: https://developers.kakao.com/docs/latest/ko/kakaotalk-channel/js#add-chat
(English version will be supported soon.)