When calling notifyCommit it should be possible to pass additional request parameter to the notifyCommit URL and when a job is triggered the parameters are passed on the triggered job, similar to "buildWithParameters", but that the parameters are part of the call to notifyCommit. This is e.g. valuable when an external system is triggering the Jenkins job with the Git notifyCommit Url and needs to pass additional parameter, e.g. the reason for the triggering or pull request identifier.