Creates or updates a pricing override for a product–customer–type combination.
Like product attribute overrides, this writes to SIMCEL’s override layer and takes effect in simulations using this workspace and plan.
The combination of productId + customerRef + name + startDate acts as the unique key.
Submitting the same key again will update the existing record.
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Plan ID — pricing overrides are scoped to a specific plan
GrossSalesValue, ListedPrice, GrossSalesValuePerKg, ListedPricePerKg