Apex use cases beyond Flow Builder
Key Takeaway
Flow Builder handles most automation. Apex is for the specific requirements that go past it, such as rollback control, after-undelete automation, heavy data processing, or custom integration logic.
Apex is Salesforce's own programming language. It is strongly typed, object-oriented, and similar to Java, and developers use it to build logic the declarative tools cannot. An app builder needs to spot the requirements that call for Apex. In many of these cases, Flow still runs the process and calls a small piece of Apex.
How Flow and Apex compare
Flow and Apex overlap a lot. Both can do these things:
- Query records
- Run conditional logic
- Assign variables
- Create, update, and delete records in a set order
So the real question is not whether Flow can do a task, but how well it handles performance, scale, and long-term maintenance.
Code also has costs. Apex needs skilled developers to write, test, and maintain it, while Flow Builder lets admins build and change automation faster without code. Code is a tool, not a cure-all: a simple flow or an existing app often meets the need quicker.
Moving from Flow to an Apex trigger also means losing built-in safeguards. Flow bulkifies automatically and retries automatically. In an Apex trigger, a developer must code bulkification by hand, and automatic retries need complex custom logic.