Troubleshooting Decision Tree Generator — illustrative example

INPUT
Known import checks: error MISSING_HEADER identifies a required column; error INVALID_VALUE identifies a record and field. No other causes confirmed.

RESULT
Import failed
├─ MISSING_HEADER → inspect the named required column in the header; correct the file and retry.
├─ INVALID_VALUE → inspect the named record and field; correct according to the schema and retry.
└─ Other or no code → stop guessing; escalate with the error text, time and a sanitized sample.
If a corrected file still fails, capture the new error and escalate rather than repeating the same action indefinitely.

REVIEW
Troubleshooting trees need observable conditions and safe recovery actions. Include a stop or escalation point when the evidence is insufficient.

This is a teaching example, not a live execution record.