A supplier must not represent that another supplier will supply goods or services, or supply them at a reduced price, on presentment of a voucher when it knows or ought to know that will not happen (paragraph 15), and must not offer gifts, prizes or free items with a supply when it knows or ought to know they will not be provided, or not as offered (paragraph 19). Voucher issuers need back-to-back arrangements with the redeeming merchants, and promotions need fulfilment stock and clear conditions.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.