promotion type
The kind of promotion a conditional sale price is — an ordinary sale, a clearance, a lightning deal, a deal of the day, a limited-time deal, a price drop, a markdown, a member-exclusive deal. THE collapse target: flash / clearance / deal-of-day / price-drop are not separate forms but values here (Phase H). A qualifier of the sale-price host; a filterable token from a growing vocabulary.
Promotion type is answered with one word chosen from the promotion types list — the same word shared across every product that uses it.
It is a qualifier of sale price — it has meaning only inside a sale price statement, one per statement, never on its own. It belongs with sale price to pricing — what it costs.
It is answered inside every sale price statement, not as a standalone question on a kind.
Answered inside every sale price statement — not a standalone slot on any kind.