Run Newman in jenkins
Install https://plugins.jenkins.io/nodejs in jenkins
In Global Tool Configuration add Nodejs and in "Global npm packages to install" add newman
In Build Environment use "Provide Node & npm bin/ folder to PATH"
In Build add "execute shell" if you are using linux or use "execute windows batch command" if you are on windows and add your newman command
For example:
newman run https://www.getpostman.com/collections/631643-f695cab7-6878-eb55-7943-ad88e1ccfd65-JsLv
I had the similar problem. I had several lines of the text in the Command field. According to advice I used backslashes to make it look pretier and I couldn't create a report with Newman. I got a report only after deleteing the backslashes and writing all information in one line