In business writing, the most important information should be provided at the beginning. It should be the most important piece of information that your audience will find useful. For example, if you are writing an email to announce a meeting, you should include the time, place, agenda, and other background information. You can even include the name of the meeting and who called it.
It is important to be clear in your writing style. If you want your readers to understand your ideas and make an informed decision, avoid using words that confuse them. For example, if your readers aren't business experts, jargons may be an easy trap to fall into. As a writer, you should remember that there is no one right answer. Instead, business writers strive to be concise and clear in their writing.
You can also use a conversational tone in your writing. This tone is more similar to the way people talk and is appropriate for some audiences. However, it may come across as less professional. Don't use expressions that suggest a close relationship between the reader and the author, or that convey special knowledge about the topic. These expressions can be misleading and may even impair trust. For example, a casual tone is inappropriate in a business document that involves more technical details.