How to Handle Duplicate Giveaway Entries
Choose a consistent identity key and apply the published entry rules before selection. Review practical steps, examples, limits and privacy-aware checks before using the result.
Random Picker Tools · Editorial Policy · Published · Updated
How to Handle Duplicate Giveaway Entries
Follow the promotion’s stated rule: one entry per person, multiple permitted entries, or one per qualifying action. Apply that rule using a reliable identifier and keep an exception log rather than making ad hoc decisions from names alone.
Recommended process
- Identify the permitted entry frequency.
- Choose the most reliable available identity key.
- Normalize formatting without changing meaningful values.
- Review ambiguous collisions manually before the list is frozen.
Worked example
A promotion permits one entry per account. Two rows with the same display name but different account IDs remain separate; three rows with the same account ID are reduced to one according to the published rule.
What to check before using the result
- Names alone are weak identity keys.
- Do not invent a duplicate rule after entries close.
- Document how ambiguous records were handled.
How the random step is handled
Random Picker Tools uses the browser Web Crypto API for selection, rejection sampling for unbiased integers and a Fisher–Yates shuffle for complete list orders. The organizer still controls eligibility, duplicate rules, consent, accessibility and legal requirements.
Privacy note
Normal picking and shuffling happen in the browser. Use initials or non-sensitive identifiers when possible, avoid unnecessary source data, and create a share link only when temporary server storage is appropriate.