At a minimum, your product memo $($a professional email is fine$)$ should contain:

Your name

Name of client you have chosen to work with

What type of product$/$service they produce

Their target audience

Location of business $($is it brick and mortar or virtual$/$online; if brick and mortar, give a city$/$state or region where they operate$)$

Campaign Goals $-$ one overarching communication goal for the campaign

Campaign Objectives $-1-3$ measurable items you want to achieve within a certain timeframe

Campaign Strategies $-$ what you are going to do$,$ and why you do are planning to do this

Campaign Tactics $-$ ground$-$level operations$/$activities to achieve all of the above