Who has to do something (customer’s developers, CMP manager e.g. Marketing Analytics manager, someone else)?

Mostly their IT department has to check on compatibility with TLS 1.2 on those devices/browsers from which the customer has access to UC Admin Interface.

Please find further information in this document:
End Of Life for TLS 1.0 and 1.1 Support

Do you need further help?

https://usercentrics.atlassian.net/wiki/spaces/SKB/pages/234913848