At which point can individual processing sets be deleted?

The ability to delete individual processing sets during the pre-processing stage is tied to the fact that this phase is primarily concerned with setting up data for subsequent processing. During pre-processing, data is being prepared, such as organizing, filtering, and potentially adjusting it before the main processing tasks begin.

At this stage, the focus is on ensuring that the data is in the right condition to be processed effectively, and any unnecessary or incorrect processing sets can be identified and safely removed without affecting the overall workflow. Once data has moved past this stage—after publishing has started or once discovery tasks are underway—removing processing sets might complicate the workflow, as they may be part of an ongoing process or related to finalized outputs. Therefore, it is most practical to manage and delete these items during pre-processing when they are still being set up and configured.