Reads and writes business data in SAP through an OData service: sales orders, materials, business partners, whatever the endpoint exposes. This is the connector that turns a hosted app into something a functional consultant can actually deliver, because an application that cannot see the system of record is a demo rather than a solution. OData is self describing, so the service metadata gives you the real entity sets and field names instead of leaving you to guess them. Phase one covers public endpoints, meaning S/4HANA Cloud, Sales Cloud and Service Cloud reached over ordinary HTTPS. Anything behind a firewall needs connectivity we do not offer yet, and this connector will not reach it.
An admin enters these once, and the platform injects them as environment variables at deploy time. Your code reads them. It never sees a login screen or an SDK for this.
SAP_ODATA_URLSAP_CLIENTSAP_USERSAP_PASSWORD