Duplicate Management
Bemba spots households that may have been registered twice, so that a household has only one identity in the registry.
Access
Side menu: Social Registry > Duplicate Management
Duplicate types detected
| Type | What is compared |
|---|---|
| Head phone | Same phone number for two heads of household |
| Member phone | Same number for members of two households |
| Similar name | Close head names in the same area |
| Location | Identical or very close GPS positions |
| Mobile Money | Same Mobile Money number |
| Identity document | Same identity document number |
Each duplicate has a similarity score from 0 to 100%:
| Score | Badge |
|---|---|
| 90% and above | Red: very likely duplicate |
| 70 to 89% | Yellow: to check |
| Below 70% | Grey: weak resemblance |
Dashboard
Four counters at the top of the page: Untreated, Detected, Ignored, Merged.
Duplicate list
Each row shows the type, the two households concerned (Household 1, Household 2), the shared value, the score and the actions.
Filters
| Filter | Options |
|---|---|
| Status | Detected, Confirmed, Ignored, Merged |
| Type | Head phone, Member phone, Similar name, Location, Mobile Money |
Handling a duplicate
Ignore
If the two households are distinct (false positive), click Ignore. The duplicate moves to Ignored status.
To ignore several duplicates at once, tick them and click Ignore selection.
Merge
If both records describe the same household:
- Click Merge.
- Choose the household to keep. The window shows each one's number of members.
- Add a comment (optional).
- Confirm.
The merge attaches the other household's beneficiaries and members to the kept household, then deletes the other household. The duplicate moves to Merged status.
Merging cannot be undone. Check both households' payments and programs before confirming.
Analyze households
The Analyze households button searches for duplicates among the current project's households and opens a Duplicate Analysis Report:
- households analyzed, duplicates found, new and already known;
- breakdown by risk level, by type and by region;
- most frequent duplicates, with the value and the number of occurrences;
- detail of detected duplicates: source and target household, head, phone, locality, shared value.
Download CSV exports this report.
Good practice
- Handle the highest-scoring duplicates first.
- When in doubt, have the field team check before merging.
- Keep the most complete and most recent record.
Permissions
| Action | Permission |
|---|---|
| View duplicates | View duplicates |
| Check a household | Check duplicates |
| Ignore or merge | Process duplicates (ignore/merge) |
| Run the analysis | Run duplicate analysis |