Data Enrichment
Overview
Data enrichment allows you to merge external participant data with your study results — adding demographic, behavioural, or contextual information you already hold into the same dataset as your survey responses. This eliminates the need to re-ask questions participants have already answered elsewhere, and enables deeper cross-analysis of your results.

How It Works
The Matching Process
Navigate to the Table Data tab in your study results
Click Enrich
Upload a CSV or Excel file containing your existing participant data
Yazi matches each row in your uploaded file to the corresponding participant in the study using the phone number as the matching key
Matched data appears as additional columns on the right side of the table, alongside your study responses
Important: Your enrichment file must contain a phone number column, formatted consistently with the phone numbers in your study data (including country code). Mismatched formats will result in failed matches.

What You Can Enrich With
From Recruitment Screeners
If your recruitment agency collected qualifying data before participants entered the study, upload that screener data to enrich your results:
Demographics — age, gender, income, education, location
Behavioral data — product usage, brand ownership, purchase frequency
Segment classification — which quota cell each participant belongs to
This means you don't need to re-ask demographic questions inside the study itself, keeping the study shorter and improving completion rates.
From Your CRM or Customer Database
Merge internal customer data with survey responses to cross-analyse attitudes with actual behaviour:
Customer tier — premium vs. standard vs. new customer
Purchase history — recent purchases, average spend, product category
Account status — active, dormant, churned
Tenure — how long they've been a customer
From Previous Studies
Upload results from an earlier research wave to track changes in attitudes or behaviour over time:
Map responses from Wave 1 to Wave 2 participants
Compare individual-level changes across survey periods
Identify participants whose views have shifted significantly

From Panel Providers
If using a recruitment panel, the provider may supply additional participant attributes:
Panel ID — for tracking and incentive reconciliation
Profile data — pre-verified demographics from the panel database
Study participation history — other studies this participant has completed
CSV Format Requirements
Your enrichment file should be structured as:
+27821234567
Female
28
Premium
+44771234567
Male
34
Standard
Requirements:
Phone number column is mandatory — this is the only matching key
Country codes must be included — format consistently with your study data
Any additional columns will be imported as enrichment fields
Column headers become the field names shown in the table
No limit on additional columns — add as many enrichment fields as needed
Viewing Enriched Data
Once enrichment is complete, your table expands to show:
All original study responses (left side)
All enrichment fields (right side, clearly separated)
You can then:
Filter by enrichment fields — show only female participants, or only premium customers
Sort by enrichment data — order results by age, customer tier, or any other field
Export combined data — download the full enriched dataset as Excel or CSV
Use in Graph Data cross-tabs — cross-tabulate survey responses by any enrichment field
Use Cases
Customer satisfaction study
CRM data (customer tier, tenure, purchase value)
Understand how satisfaction varies by customer value
Product trial feedback
Screener demographics
Analyse responses by age, gender, income without re-asking
Panel research
Panel profile data
Leverage pre-verified demographics for deeper analysis
Longitudinal tracking
Previous wave responses
Compare individual-level attitude changes over time
Employee research
HR data (department, tenure, location)
Cross-analyse feedback by team or seniority
Known Limitations
Phone number matching only — the only matching key is phone number. If participants used a different number to complete the study than the one in your enrichment file, they won't be matched.
Format consistency — phone numbers must be in exactly the same format in both files. A number with a + prefix in one file and without in another will not match.
No automatic re-enrichment — if you update your enrichment file, you'll need to re-upload it to refresh the data in the table.
Enrichment is per study — enrichment data applies only to the study you uploaded it to. It does not carry across to other studies.
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