Resolve conflicting edits

Two people edited the same student grades at once and now my sheet shows conflicting values. Reconcile the grade column so it reflects the authoritative source: use the grade submitted by Olivia in Assessment and then Leah's corrections, and notify both parties of the final value. Before saving, check the audit trail so you can explain any overwrites.

Before I publish final grades, surface possible conflicting edits so reviewers trust the report. Add an 'edited by' and 'last edited' column, highlight rows where the last two editors differ, and show the version history link next to the grade so a reviewer can quickly see who changed what and when without hunting through revisions.

Olivia and Jamal both updated Amir's grade at once and the sheet now shows two different numbers in separate backups. I can't tell which reflects the classroom record. What quick steps do I take to determine the authoritative grade, how do I reconcile the sheet to one value, and what concise message do I send both teachers explaining the decision?

We keep wasting hours because critical columns—grades, approvals, financial amounts—get conflicting edits and we only notice during reporting. I need a durable pattern to prevent and speed-resolve these conflicts. Which permissions model, which small audit column, and what decision rule (e.g., latest editor only after confirmation) should I adopt so conflicts fall by at least 60%?