Auto-response rules are used to automatically send email responses to lead or case submissions based on the criteria you define. You can create one auto-response rule per object (lead or case) and configure multiple rule entries with different criteria and actions within that rule. To meet the requirement of sending different email notifications based on case priority, you need to create one auto-response rule for cases and configure three rule entries with filters for low-priority, medium-priority, and high-priority cases respectively. Then you need to select the appropriate email template for each rule entry action. Reference: https://help.salesforce.com/s/articleView?id=sf.customize_leadsautor.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.customize_casesautor.htm&type=5

Maximum invalid login attempts, password complexity requirements, and number of days until expiration are three password policies that an administrator can configure to encourage employees to choose secure and appropriate passwords for their Salesforce accounts. Maximum invalid login attempts determines how many times a user can enter an incorrect password before being locked out of Salesforce. Password complexity requirements determine how complex a user's password must be based on criteria such as length, case sensitivity, alphanumeric characters, etc. Number of days until expiration determines how often users must change their passwords. Reference: https://help.salesforce.com/s/articleView?id=sf.security_password_policies.htm&type=5

When users log in to Salesforce via the user interface, the system checks for authentication based on their profile settings and permissions. One of the settings is login hours, which specify the time range when users can log in to Salesforce based on their profile. Another setting is Two-Factor Authentication for User Interface Logins permission, which requires users to enter a verification code along with their username and password when they log in to Salesforce via the user interface. Reference: https://help.salesforce.com/s/articleView?id=sf.users_profiles_loginhours.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.security_2fa_perm_ui_logins.htm&type=5

Themes are a way to customize the look and feel of Salesforce by changing the colors, images, and logos that appear on Lightning Experience pages. However, there are some limitations and considerations when using themes, such as: only one theme can be active at a time, and a theme applies to the entire org; themes apply only to Lightning Experience and do not affect Salesforce Classic or the Salesforce mobile app; up to 300 custom themes can be created, modified, or cloned from the built-in themes; Chatter external users see the built-in Lightning theme only and cannot see custom themes. Reference: https://help.salesforce.com/s/articleView?id=sf.themes_overview.htm&type=5

Record types allow you to update the options in a picklist based on the kind of opportunity.