The percentage of opened Pull Requests closed that are successfully merged.
Why it matters: The number of pull requests that went through the process without being discarded (closed without merging) is one measure of the efficiency of your process. A low or declining Pull Request Success Rate represents high or increasing waste.
How to use it: If your Pull Requests Success rate is low or decreasing, take a look at specific, unsuccessful, closed PRs to identify patterns. Common reasons for a low success rate include changing requirements, unclear technical direction, or implementation challenges.
note: this metric's calculations do not include open or abandoned PRs