Part of the enablement of Gateway Workflow (and also of Duet Enterprise workflow, as it is a first-class subscriber of Gateway workflow), is to specify the workflow filter settings. When entering new entries in the OSP reports, the system may return the message ‘Choose the key from the allowed namespace’, with the Parameter ‘TASK’ value identified as faulty.
Strange as the value ‘TASK’ is selected from the optionlist of allowed values (others are: ALERTCAT, DELTA, and WORKFLOW_STEP).
It occurred in our landscape, and I could not find anyway to avoid nor correct the indicated input error.
However, as it turns out this message is only a warning. You can ignore it to have your submitted entry successfully be added to the filter customization. Just click on the ‘Enter’ icon, and next ‘Save’.