Introduction
Writing Apex is exciting.
Watching your code deploy successfully feels even better.
But writing good Salesforce code is very different from writing code that simply works.
Many beginner (and even experienced) developers repeat the same mistakes that eventually lead to governor limit errors, debugging headaches, and difficult deployments.
Here are five mistakes I keep seeing—and how you can avoid them.
- SOQL Queries Inside Loops
This is probably the most common mistake.
Instead of querying records inside a loop, retrieve the data once and use collections.
You'll write cleaner code and avoid the infamous Too Many SOQL Queries: 101 error.
- Ignoring Bulkification
Your code may work for one record.
Will it work for 200?
Always assume your trigger or Apex class will process multiple records at once.
- Forgetting Apex Tests
Writing the feature is only half the job.
Good test classes protect your application from future changes and make deployments much smoother.
- Triggering Recursive Automation
One update triggers another.
Then another.
Then another.
Before you know it...
Your trigger is calling itself repeatedly.
Using recursion guards and thoughtful trigger design can save hours of debugging.
- Using Apex When Flow Can Do the Job
This one surprises many developers.
Sometimes the best code...
...is no code.
Salesforce Flow has become incredibly powerful and can handle many automation requirements without adding maintenance overhead.
Final Thoughts
Good Salesforce development isn't about writing the most Apex.
It's about writing the least amount of code necessary to solve the problem.
Clean code, bulkification, proper testing, and choosing declarative tools whenever possible will make your Salesforce applications easier to maintain for years to come.
If you'd like practical tutorials on topics like Apex, Triggers, Governor Limits, Flow, and Salesforce development, I've written detailed beginner-friendly guides on SalesforceCorner.
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