The event served as a catalyst for the US government to switch over to the articles of confederation to what became the United States Constitution. it was the moment in which they realized the AOC had to be changed. From this come the VA and NJ Plan
The main effect that it had on our country was that it caused the calling of the Constitutional Convention. The men who attended this convention wrote the US Constitution. Thus, Shays' Rebellion led rather directly to the writing of the Constitution