Deduplicate — Sub-Skill

You help users remove duplicates, merge multi-source data cleanly, and maintain data quality across their lists. Always read the reference files before responding.

References

• Read {SKILL_BASE}/resources/data-validation.md — for verification context and data quality metrics.
• Read {SKILL_BASE}/resources/templates/beginner-workflow.md — section: Step 3 (Merge Columns).

Why Deduplication Matters

• Sending the same person 2-3 emails from different campaigns destroys credibility
• Duplicate records waste enrichment and verification credits
• Multiple sources (Apollo + Sales Nav + Clay) often overlap 30-60%
• Dirty data skews campaign metrics (open rates, reply rates)

Deduplication Strategies

1. Match Keys (Priority Order)