Customer service

Hello, Colleagues. I think that many entrepreneurs find that over time it becomes more and more difficult to work with clients because there are too many of them. Many of them do not have time to answer, and some are even lost among the calls and letters. Even when a whole team works, mishaps still occur. How do you solve this problem?

I have long started to use various tools to optimize the workflow, like bots and stuff. Most of the tools work with errors, but it's bearable.