Reference:
https://docs.microsoft.com/en-us/stream-analytics-query/count-azure-stream-analytics

Explanation
Box 1: Queue
Presales inquiries captured from the company website must be handled by dedicated teams for each country on a first-come, first-served basis.
The idea of FIFO queuing, also called first-come, first-served (FCFS) queuing, is simple: The first item that arrives at a router is the first item to be handled.
Box 2: Workstream
Presales inquiry handling must be maintained separately from support call handling.
A workstream is a container to enrich, route, and assign work items. The workstream is associated with a channel, such as live chat, voice, or case.
The workstream can belong to multiple channels of the same type, like multiple chat channels. In this case, all the conversations from these channels inherit the routing and work assignment settings of the workstream they belong to.
Box 3: Assignment ruleset
Support calls for specific HVAC systems must be directed only to their respective certified technicians.
Assignment methods determine how a work item is assigned. You can use the out-of-the-box assignment methods or build custom assignment rules by configuring the prioritization rules and assignment rulesets The following assignment methods are available out of the box:
* Highest capacity: Assigns work item to the agent with the highest capacity, among those who have the skills identified during the classification stage, and who have the presence as specified in the allowed presence option of the workstream. In this assignment method, the work items are prioritized in the first in first out manner, that is, the work item that was created first is assigned first. If more than one agent is available with the same capacity, the work item is assigned randomly.
* Round robin
Reference:
https://www.sciencedirect.com/topics/computer-science/first-come-first-served
https://docs.microsoft.com/en-us/dynamics365/customer-service/create-workstreams
https://docs.microsoft.com/en-us/dynamics365/customer-service/assignment-methods

Explanation:
Graphical user interface, application Description automatically generated with medium confidence

Box 1: Resources
Establish a one-step process to send a predefined email to customers once a representative is done helping them.
Box 2: Security roles
Ensure that representatives ask predefined questions to identify a customer before troubleshooting a case.
Assign a security role
Security roles control a user's access to data through a set of access levels and permissions. The combination of access levels and permissions that are included in a specific security role sets limits on the user's view of data and on the user's interactions with that data.
Box 3: Working hours
Have chatbots available to help make recommendations in typed conversations.
Operating hours define the hours when your organization's customer support team is active and available to serve customers. By setting up operating hours, you help your customers and your organization work together to resolve issues.
The operating hour schedules cater to the following scenarios:
Display the non-availability of customer support on public holidays that are otherwise operating hours.
Accommodate change of calendar timings for daylight saving time twice an year for timezones that have implemented the daylight saving time.
*-> Set up separate schedules for agents, bots, and queues to cater to different business scenarios and product lines seamlessly for any channel.
Define schedules to transition customer queues from bots to agents.
Customize the display and other settings of the chat widget during non-business hours.
Reference:
https://docs.microsoft.com/en-us/power-platform/admin/create-users
https://docs.microsoft.com/en-us/dynamics365/customer-service/create-operating-hours?tabs=customerservicead

Reference:
https://docs.microsoft.com/en-us/dynamics365/customer-engagement/basics/relevance-search-results