scope decides which entities it evaluates and how the tag
propagates.
Scope fields
An empty/absent filter means “no restriction on that dimension”. Filters combine to narrow
the evaluated population.
Propagation modes
The hierarchy is Brand → Product → Variant → Inventory item.
Entity hierarchy and propagation modes:
The exact propagation traversal runs in the data platform’s tag-evaluation engine; the
rule only declares the mode. Choose
CASCADE_DOWN to label a whole sub-tree from a
higher level, or BUBBLE_UP to mark a parent because one of its children matched.
