Intro to Debug Logs: Reading the Salesforce Matrix

Today I cracked open Debug Logs for the first time. It was intimidating at first—like staring into the Matrix—but I finally figured out how to use them.

I was troubleshooting why a flow wasn’t updating a field. Turns out, a validation rule was firing quietly in the background. I would’ve never known without the debug log.

Here’s what helped:

  • Use Setup > Debug Logs to add yourself (or a user)

  • Trigger the issue manually

  • Open the log and look for your Flow name or error messages

Once you get the hang of it, logs are like a behind-the-scenes tour of everything Salesforce is doing. It’s messy but powerful.