Reserved RTR Field Values
MC2 EJM uses the RTR sentBy field to mark EJM tasks that are executed by MC2 EJM.
If the sentBy field has a value of MC2EJM, that task is executed by MC2 EJM and can be processed differently than without this value.
For example, the extract task that runs eagle_ml-2-0_default_out_extract_service with a sentBy value of M2EJM does not run any distribution and runs the MC2 Task Reporter instead of running an internal task reporter emulation. Therefore, do not set the sentBy field to MC2EJM in manually executed tasks.