The reader may make assumptions about you or the situation; perhaps you are new to the organization, or the situation is a challenging one. To get your message past these barriers, provide evidence to support your claims and enhance your credibility.

The reader may be influenced by emotions; they may be angry to hear about a situation, or fearful that acting as you request will cause problems with others. To get your message past these barriers, provide evidence to support your claims.

The reader and the writer may not commonly use the same technical language. To get your message past these barriers, explain technical terms when they must be used. Assume your readers are intelligent, but not experts in your area.

The reader and writer may not share an understanding of the culture of the organization or of the country or region. To get your message past these barriers, be aware of the ways culture affects what you are writing.