Entity relationship diagrams (ERDs) for standard Salesforce objects illustrate important relationships between objects. Salesforce ERDs use crow’s foot
notation.
ERDs are hosted in the Data Model Gallery. The Salesforce Data Model Gallery is a
curated collection of diagrams that illustrate the underlying data models for Salesforce
products, features, and clouds. It’s a resource designed to support customers,
developers, solution engineers, and data architects in understanding how data is
structured across Salesforce — enabling better solution design, integration planning,
and implementation strategy.
The data model for your custom objects depends on what you create.
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