User category Change

Summary: We have some service users (mainly those users through which Integrations are run or programs are scheduled) which are defined as either Employee or as Contingent worker. They should have been defined as service account instead.

We have these users in live production system. Now we want to update them to service account. How can this be done without having disruptions in the live system?

Content (please ensure you mask any confidential information):ok

Version (include the version you are using, if applicable):25D

Code Snippet (add any code snippets that support your topic, if applicable):NA