Donor Management
Duplicate Detection
Keep your database clean automatically
Duplicate Detection uses multi-stage scanning to find and merge duplicate records before they cause problems. The system first scans by username and email for exact matches, then broadens to title field matching for near-duplicates. Potential duplicates are grouped for review, and merging consolidates all donation history, sponsorships, messages, and activity into a single clean record.
2-stage
Scanning depth
100%
History preserved on merge
< 5 min
Full database scan
0
Data lost during merge
The Problem
Without duplicate detection, your donor database accumulates redundant records over time -- splitting giving history across profiles, inflating donor counts, and leading to embarrassing duplicate solicitations.
The Solution
With HYS Duplicate Detection, your database stays clean through automated multi-stage scanning and guided merges that preserve every dollar of giving history in a single unified record.
See it in action
How it works
Automated scan
The system runs multi-stage duplicate scanning -- first matching on username and email, then broadening to name and title fields for near-duplicates.
Group review
Potential duplicates are grouped together with a side-by-side comparison showing each record's data, giving history, and activity.
Select primary record
Choose which record to keep as the primary. The system shows you exactly what data will be merged and what will be discarded.
Merge with history
All donation history, sponsorships, messages, and activity from duplicate records are consolidated into the primary record. Nothing is lost.
Key features
Who uses this
Database Manager
Runs a duplicate scan after a large CSV import and finds 200 potential duplicates, merging them in bulk before the records reach the fundraising team.
Development Director
Discovers that a major donor has 3 separate profiles from different giving channels, merges them, and realizes the donor's true lifetime value is 3x what they thought.
Operations Lead
Schedules quarterly duplicate scans to keep the database clean as new donors enter through multiple programs and events.
Frequently asked questions
Ready to get started?
See how duplicate detection can transform your organization.