Explanation
The error message "Error in changepass to user domain\user on domain server(\domain.(winRc=5) Access is denied" suggests that the account attempting to change the password does not have the necessary permissions to do so. This could be due to several reasons, such as the account not being part of the appropriate group with password change privileges, or specific restrictions set on the account that prevent password changes. It's important to verify the account's permissions and ensure it has the ability to change its own password within the domain.
References: The conclusion is based on common issues encountered in CyberArk's Privileged Access Management (PAM) when managing account passwords and the associated error codes. The CyberArk documentation and community discussions provide insights into troubleshooting such errors, where insufficient permissions are a frequent cause

Explanation
When the Master Policy enforces check-in/check-out exclusive access, passwords are changed when the user clicks the Release button and releases the account. This is based on the ImmediateInterval parameter in the applied platform. If the user forgets to release the account, it is automatically released and changed by the CPM after a predetermined number of minutes, defined in the MinValidityPeriod parameter specified in the platform

Explanation
The Use Accounts permission enables Safe members to log in to a remote machine through a PSM connection from the Accounts List or the Account Details page. The List Accounts permission enables Safe members to view the Accounts list. However, to show or copy the password, the Safe members also need the Retrieve Accounts permission, which allows them to view and copy the account value in the Account Details page or the Accounts list. Therefore, the combination of Use Accounts and List Accounts will allow end users to log in to a remote machine transparently but not show or copy the password. References:
* Safe Members - CyberArk1, section "Permissions"
* Safes and Safe members - CyberArk2, section "Safe members overview"