We have S4HANA environment wherein I have created a custom workflow scenario in design time to generate PO automatically in background. If PO generation gets errors then those errors will be sent to responsible in the email (next workflow step). Everything look good to me from design perspective but once I test my workflow scenario in ABAP I get an error message "Task Definition <Workflow Scenario ID> not found". I asked google but didn't find yet the hit that solves my issue. Please see the screen shot for details.
I have worked on workflows few years back but not re-engineered workflow for S4Hana. So creating design scenario is also new to me.