Such an offer must include a clear financial policy. For instance, it can be sales commission, SaaS model (monthly payment of tariff plan), or hybrid work scheme.
Firstly, it is helpful to look at offers for merchants of top marketplaces. They have unique features that can help to develop their own work plan.
Also, the offer must include a list of specific bonuses, such as technical pluses of the marketplace, service description, etc.
New marketplaces can be "equipped" with IT infrastructure – PIM system
, merchant cabinet, and other modern modules.