What is the requested change? (NOTE: There may be more than one change.)
What is the real severity/importance of this change?
How does it impact each of the project parameters (scope, quality, risk, schedule, etc.)?
What are at least 3 possible courses of action?
What are the implications of each course of action?
What is your recommendation?
How will you communicate your recommendation? (To whom, what mechanism) ?
Identify each piece of the functionality (reporting, tracking, and interface), and determine the severity of each based on their assessment and the information from the head of sales.
Support their severity decision in a way that is rational and complete.
Identify what each change will impact, such as quality, schedule, budget, and so forth.
Identify the possible courses of action, which may or may not address all 3 requests at once.
If the courses of action do not address all changes simultaneously, there should not be any adverse affects of that option.
Support your recommendation and then describe what communication techniques you will use as next steps.