Your task
R01 occurs twice. What must you check before removing a row? Describe the risk of an automatic correction.
Hint
Distinguish formatting fixes from changes in business meaning. Specify what evidence authorizes each correction.
Worked solution
Compare every field, document the duplicate occurrence and preserve its source row number. This fixture has an identical repeated row; a derived clean copy may retain one R01. If amounts differed, stop for a source decision instead of keeping the first.
What to hand over
Provide raw source fingerprint, old/new values, rule, evidence, affected row IDs and validation totals. A clean-looking table alone is insufficient.
Try the activity before reading its reference. Keep your sources, commands and assumptions with your work. Companion activities are unsaved self-practice and do not award a certificate or change lesson progress.