Existing customers of WithSecure Elements Vulnerability Management (EVM) who migrate to WithSecure Elements Exposure Management (XM), and use the EVM-only client, will need to change it to use a new subscription key.
Read the full article here:
https://community.withsecure.com/en/kb/articles/32750-changing-a-elements-vulnerability-management-agent-to-use-an-elements-exposure-management-subscription