I just tried creating a custom build step using the (multi) conditional build step plugin, adding an "artifact deployer" task to copy files to a remote location during the build process. The job configuration page in Jenkins allowed me to configure the necessary options as expected, but when I went to save the configuration I got an error. Apparently when the conditional build step plugin when to instantiate an instance of the artifact deployer plugin, an exception got thrown. This effectively prevents me from using Jenkins to manage build artifacts using these plugins.