Am I eligible to use promote subscription on SAP Business Network Discovery?

SAP Business Network

The SAP Business Network, promote subscription will be available and attractive to both Standard account and Enterprise account suppliers. Promote is strategically aligned to our objectives on the SAP Business Network as it targets non-paying Suppliers and aims to convert them from users to customers.

SAP Promote Subscription

Why haven't my new sellers received an invitation for my private Discovery posting?

What are the benefits of Promote?

SAP Business Network for Procurement & Supply Chain > Administrasjon (kontoadministrasjon for kjøper og leverandør)
SAP Business Network for Procurement & Supply Chain > Discovery og sourcing/kontrakt - PunchOut-scenario