Choosing a Salesforce Integration Pattern

The best integration pattern depends on timing, ownership, volume and failure handling.

Synchronous when the user needs an answer

Use a synchronous interaction when the caller genuinely needs the result before continuing.

Asynchronous when work can wait

Queue work when it does not need to block the user experience.

Events when systems need to react

Event-driven designs can reduce tight coupling between systems and allow consumers to process changes independently.