What it is
Apex is a strongly-typed, object-oriented programming language that runs on the Salesforce platform. It powers triggers, batch jobs, REST/SOAP APIs, and custom logic that goes beyond what declarative tools like Flow can handle. In the Agentforce era, Apex classes serve as custom actions that agents can invoke.
Why it matters
Apex is how you extend Salesforce beyond configuration. When your business logic is too complex for Flow or your agents need custom actions, Apex fills the gap. It runs natively on the platform with full access to your data and security model.
Key components
- Triggers
- Batch Apex
- REST/SOAP APIs
- Invocable Actions
- Test classes
How it connects
Agentforce agents invoke Apex classes as custom actions. Apex also powers the triggers, integrations, and batch processes that keep your org running.
Good to know
Governor limits are real — Apex code runs in a multi-tenant environment with strict CPU, query, and DML limits. Design for bulk operations from the start.
Related terms
Agent Builder
Salesforce's low-code tool for creating and configuring Agentforce agents — define topics, actions, and guardrails without writing code.
Agentforce
Salesforce's AI agent platform that enables businesses to build, customize, and deploy autonomous AI agents across sales, service, marketing, and commerce.
Apex in practice
Articles from the Funnelists Team that put this term to work.
How Salesforce AI Agent Architecture Supports External MCP Servers
Salesforce solution architects can connect Agentforce agents to third-party systems using the Model Context Protocol without building custom APIs from scratch.
Salesforce Custom App Development vs Managed Packages: When to Build In-House and When to Package
Building a custom app directly in your Salesforce org and shipping it as a managed package lead to very different costs. This guide breaks down the trade-offs in maintenance, distribution, and long-term costs.
Why Agentforce Third-Party Integrations Demand Custom Guardrails
Salesforce admins and solution architects integrating Agentforce with external tools via MCP face supply-chain and privilege risks that native guardrails do not fully cover. This post shows how to add targeted custom controls without heavy custom code.
How Salesforce LWC Limits React Development for Modern Frontends
Salesforce solution architects often hit walls trying to bring React into LWC. This post explains the historical limits, the new native path with Multi-Framework, and clear criteria for choosing between the two.
