Hi Charlie
I created this workflow here , you can follow my blog
https://experienceleaguecommunities.adobe.com/t5/workfront-fusion-2-0-blogs/workfront-fusion-automation-workflow-to-create-leads-in-marketo/ba-p/568537
Thanks
Ashish
@TarunKumarplease include this dependency. to work in maven<!-- https://mvnrepository.com/artifact/com.google.oauth-client/google-oauth-client-jetty --><dependency><groupId>com.google.oauth-client</groupId><artifactId>google-oauth-client-jetty</artifactId><version>1.31.5</version></dependency>