Is there any log in Appian that captures changes made to user account? For eg: C

Hi Tanmay, Not sure if there is any log in Appian but you can consider using the "Group Management Tempo Application" shared component. Though I doubt if password change can be audited using this shared component!

Following documentation has list of the out of the box logging that the product offers:
forum.appian.com/.../Logging.html

With regards to the application mentioned above, it stores the only fact that a User object has been 'Updated' in case if modifications are made to the corresponding User object. Just in case, if the application is decided as a viable option, extension of the application might be needed in order to shed more light from the audit perspective of the User object, as the existing application is focused on logging the Group membership updates as of now.