Here at Hubject, CPOs can make two types of offers, OfferToAll (to all EMPs) and bilateral offers (offers directed at a selected partner). Service offers are used to create contractual relationships between partners. They can define the details of a charging operation such as the Price. You will find all offers in the Business Contracts section of the HBS under Service Subscriptions.
All CPOs at Hubject offer their charging points for roaming to all EMP partners that wish to subscribe - this standard offer is called 'OfferToAll' and any EMP is free to subscribe to this offer.
As an EMP, you can also contact the CPO to negotiate a bilateral offer with any CPO on the platform. Please reach out to the CPO directly to negotiate a bilateral offer and ask the CPO to create one that suits your needs.
Next, read more on the pricing models here at Hubject.