I believe the Munich Putsch was a failure for many reasons.
Firstly, Hitler did not achieve all of his aims, when he marched into Munich– he thought that he would over through the government- however his plan did not work instead he was betrayed by the nationalist politicians Kahr and Lossow. Kahr had called in police and army reinforcements. There was a short scuffle in which the police killed 16 Nazis. Hitler fled, but was arrested two days later. Also the Nazi party was banned, and Hitler was prevented from speaking in public until 1927. Hitler went to prison, where he wrote 'Mein Kampf'.
However the Munich Putsch was a success because he gained strength and popularity from his actions. Even though he went to jail, millions of Germans read his book and Hitler's ideas became very well known. Also Hitler decided that he would never come to power by revolution; he realised that he would have to use constitutional means, so he organised:
The Hitler Youth
Propaganda campaigns
Mergers with other right-wing parties
Local branches of the party, which tried to get Nazis elected to the Reichstag
The SS as his personal bodyguard, which was set up in 1925 it was this strategy of gaining power legitimately.
The Munich putsch helped Hitler in many ways discover his fait and how he would pursue it. I think that it was more of a failure than a success because he got shot and he did not succeed in his main goal to over through the government.