Ongoing tracking of how happy your customers are and how actively they use your solution is a good option. If for some reason they dislike smth, you can learn about this before they go. Then offer some help/share advice that will improve your client's experience and make them happier and loyal as a result ;)
Which methods have you already tried?
My advice is:
Pay attention to negative feedback and trasform it into a plan of what should be improved.
Talk to people (not just customers).
Get back to churned customers with an improved offer.
@stefaniya_sparysheva we use different methods such as email reminder, feature adoption campaigns, also, try to get more insights by taking user interviews
@ostap_yaroshevych get feedbacks from your customers - the worse is the better as you'll learn massively from it. Feel free to reach me in LinkedIn to help you further on this.
In my experience, it's good product onboarding, well fit emailing and push scenarios and a comprehensive library customers can go when they are stuck. Closer product gets to in-person engagement, higher the retention rates go.
NEWOLDSTAMP