Stage one enables the flow of units of measure or the transactional flow of customers purchasing offerings from your supply chain. This involves your suppliers (source of goods), your internal team to present the goods in response to your customer's needs and the fulfilment or delivery of the goods.
Regarding stage one's relationship to platform design, it is to reduce and limit transaction costs; scaling without having precise control over your costs limits your profitability.
Participant onboarding, familiarise participants with the platform operations and lower the sale cost by enabling customers to self-service or your team to produce a quote accurately and quickly.
Profitable scaling means automating process to save costs.
Acquiring new customers at an affordable cost.
Platforms need repeatable, scalable offerings to sell.
Combine all the different components to accelerate your growth.