How do I use Trace Parser to debug D365FO?

Use Trace Parser when the issue spans a lot of calls and stepping through everything in Visual Studio would be painful.

The basic workflow is:

1. Capture a trace while reproducing the issue.
2. Open/import the trace in Trace Parser.
3. Find the slow or failing operation.
4. Follow the call tree.
5. Inspect expensive SQL, repeated calls, and exceptions.

Trace Parser is especially useful for performance problems because it shows what actually executed, including X++ call trees and database activity.

I usually start by looking for:

• High total execution time
• High call counts
• Repeated SQL
• Long-running SQL
• Obvious N+1 patterns