What are Data Streams and what connector types does Data Cloud support?

Data Streams are the ingestion pipelines that bring data into Data Cloud from external sources. Supported connector types:

1. Salesforce CRM Connector — syncs standard and custom objects from a connected Salesforce org (near real-time delta sync).
2. Marketing Cloud Connector — ingests subscriber, engagement, and journey data from Marketing Cloud.
3. Ingestion API — REST API for streaming or bulk ingestion from custom applications, mobile apps, or external systems.
4. Cloud Storage Connectors — batch file ingestion from Amazon S3, Azure Blob Storage, and Google Cloud Storage using CSV or Parquet files. Each Data Stream maps source fields to Data Model Objects (DMOs). Formula fields can be created within a Data Stream to transform or derive values during ingestion before data is mapped to DMOs.