Help:Edit summary
An edit summary is brief explanation of an Help:editing(edit) to a MyWikiBiz page. When you edit a page you will find a small "Edit summary" field under the main edit-box.
It is good practice to fill in the Edit Summary field, or add to it in the case of section editing, as it helps everyone to understand what is changed, such as when perusing the history of the page. It's a good idea to set your user preferences (under Editing) to "Prompt me when entering a blank edit summary".