Quick References

Cheatsheets, comparisons, and decision tables.

Architecture

Batch vs Queueable vs Future

Batch = large data volumes with chunking. Queueable = complex async with chaining. Future = simple fire-and-forget for callouts and mixed DML.

Integration

API Limits by Edition

Enterprise = 100K/day. Unlimited = 500K/day. But your actual limit depends on license count — it is a base + per-user-license formula, not a flat number.

Platform Events vs Change Data Capture

Platform Events = custom business events you define. CDC = automatic notifications when records change. Use PE for cross-system orchestration, CDC for data sync and audit trails.

Which Salesforce API?

REST for most integrations. Bulk for high-volume data loads. Streaming (CDC/Platform Events) for real-time. GraphQL for efficient UI queries. Tooling for metadata operations. SOAP only when a WSDL-first contract is required.

Security

Sharing Model Decision Guide

Start restrictive (Private OWD), open up with Role Hierarchy, automate with Sharing Rules, and only reach for Apex Managed Sharing when the declarative layers run out.