Hi Henk,
the data is currently not available in Grail but only via the Automation REST API (executions endpoint).
However we are currently working on adding the execution metadata (so timestamps, status, status info, ids, ... but no result, log or input data) for the various levels: workflow-, task, and action-execution to grail as a dt.system.event under the event_kind WORKFLOW_EVENT.
The first version will likely already be made available in December, however still experimental, meaning the format might change somewhat in the future and there is no 100% guarantee yet that all events show up (currently looking at ~99,99%).
While you 'll already be able to query that data and (hopefully) provide feedback to us, it's not recommended in the experimental phase to build critical processes on top of this data.
