Workflow
A usual CRM workflow follows the transition shown in the diagram.

To understand a workflow in a nutshell, let us narrate a fictional story.
Company
Consider a mid-scale Event Management Company (ABC), who is using our CRM to manage their customer interactions. They are approached by a client (XYZ) to help them with their annual event.
Now in this case, there can be two possibilities:
The client could be a new customer for the company, so the company's event manager creates a new customer the profile for the client with all the relevant details.
If the client is an existing customer and had done business with company earlier, then the company can search and pull out the client' profile existing in their system.
The company can also tag the phase of the client to Suspect/Lead/Prospect/Customer, depending upon which phase of discussion they are in.
Only when the phase is changed to 'Customer', the company can sync the client details to their R2 software with a single click.
This phase of the workflow is called ‘Creating/Searching a Company’. Know more about company?
Opportunity
Next, once the customer’s data filled-in/retrieved, the Sales Manager ‘Creates an Opportunity’ in the system to get the project into their hands. Even though later, if the company loses the opportunity, they still should be able to track and record the reason for slipping it from the business line.
As the deal between company and client progresses, the details of communication between them can be captured in detail. These records become important while the opportunity transitions from one team member to the other.
CRM also facilitates integration with Office 365. know more?
You can read more about creating/tracking the Opportunity here.
Activity Manager
For each strand of this communication done, you can create to-do action-items (tasks or follow-ups to be done by company) as required. The same can be captured within the software. Furthermore, each of these action-items can be tracked to a closure or dismissal.
Lastly, from company's perspective, once any such opportunity is ready to be served as an Order,you can start creating Project/Event/Order(s) for it.
Want to know more about Activity Manager.
Click here to see the CRM login details.