Permissions and Approvals
Permission means just that — a permission to use something in your promotional piece. If you interview a customer for a product success story, you should get a special permission or release form signed by that person before you use the information.
You may also need permissions to quote substantial sections of product reviews, research reports, studies, white papers, and other sources that you have used to support your product claims.
As your copy is going through the approvals process, be sure to date each new draft you prepare. Otherwise, you may not know which one is the most recent. When the final draft is finally approved, label it as Final. This will indicate to everyone involved that this draft is good to go.
In addition to obtaining permissions, your copy is likely going to have to get a number of approvals — and not just from your immediate boss or client. There may be approvals required from senior management and the legal department. The copy has to be signed off by all concerned before it can go into production.

