Summarize the information that is required to write a persuasive sales message

Success in writing is directly related to success in preliminary thinking. Specifically, you need information about the following:
a) Your product, service, or idea
b) Your audience
c) The desired action

You cannot be satisfied with knowing the product, service, or idea in a general way; you need details. Get your information by performing the following actions:
a) Read available literature.
b) Use the product, and watch others use it.
c) Compare the product, service, or idea with others.
d) Conduct tests and experiments.
e) Solicit reports from users.

In order to know the target audience, you need to ask the following questions:
a) Who are the people to whom the persuasive message is directed?
b) What are their wants and needs?
c) Is a persuasive message to be written and addressed to an individual or to a group?
d) If it is addressed to a group, what characteristics do the members have in common?
e) What are their common goals, their occupational levels, and their educational status?
f) To what extent have their needs and wants been satisfied?
g) How might cultural differences affect your message?

You need to have a clear definition of the desired action before composing your message:
a) What do you want the reader to do?
b) Complete an online order and make a payment?
c) Receive a demonstration version for trial?
d) Return a card requesting a representative to call?
e) Email for more information?
f) Approve a request?
g) Accept a significant change in service, style, and procedure?