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6Binary Classification · Referral

Referral Prediction

Which customers will refer a new user in the next 30 days?

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A real-world example

Which customers will refer a new user in the next 30 days?

Referral programs are the lowest-cost acquisition channel, but most companies incentivize all customers equally. High-NPS customers with strong social connections refer at 10x the rate of average customers, yet referral nudges go out in blanket campaigns. The result: wasted incentive spend, referral fatigue among unlikely referrers, and missed opportunities with natural advocates. Companies need to identify who will refer — not just who is satisfied.

How KumoRFM solves this

Relational intelligence for smarter acquisition

Kumo builds a graph connecting CUSTOMERS, REFERRALS, and ORDERS. The GNN learns that referral behavior depends on more than NPS alone — it captures patterns like 'customers who purchased 3+ times, have tenure above 12 months, and are connected to other active referrers.' By modeling the referral graph directly, Kumo identifies the structural and behavioral signals that distinguish referrers from satisfied-but-passive customers.

From data to predictions

See the full pipeline in action

Connect your tables, write a PQL query, and get predictions with built-in explainability — all in minutes, not months.

1

Your data

The relational tables Kumo learns from

CUSTOMERS

customer_idnamenps_scoretenure_months
CU101Sarah Chen924
CU102James Park836
CU103Maria Lopez76
CU104Alex Kim1018

REFERRALS

referral_idreferrer_idreferee_idstatustimestamp
R01CU101CU103converted2025-09-15
R02CU102CU105pending2025-10-01
R03CU104CU106converted2025-10-20

ORDERS

order_idcustomer_idamounttimestamp
O901CU101$3402025-10-05
O902CU101$5202025-11-01
O903CU102$2802025-10-15
O904CU104$6102025-10-25
O905CU104$4452025-11-10
2

Write your PQL query

Describe what to predict in 2–3 lines — Kumo handles the rest

PQL
PREDICT COUNT(REFERRALS.*, 0, 30, days) > 0
FOR EACH CUSTOMERS.CUSTOMER_ID
3

Prediction output

Every entity gets a score, updated continuously

CUSTOMER_IDTIMESTAMPTARGET_PREDTrue_PROB
CU1012025-11-01True0.85
CU1022025-11-01True0.72
CU1032025-11-01False0.11
CU1042025-11-01True0.93
4

Understand why

Every prediction includes feature attributions — no black boxes

Customer CU104 — Alex Kim

Predicted: True (93% probability)

Top contributing features

Already referred 1 converted user in last 60 days

1 referral

31% attribution

NPS score of 10 (promoter)

10

26% attribution

2 purchases in last 30 days (high engagement)

2 orders

20% attribution

18-month tenure (established relationship)

18 months

15% attribution

Connected to 3 other active referrers in graph

3 connections

8% attribution

Feature attributions are computed automatically for every prediction. No separate tooling required. Learn more about Kumo explainability

Bottom line: Targeting the top 20% of predicted referrers with personalized incentives generates 4x more referrals per dollar spent than blanket referral campaigns, turning your best customers into a scalable acquisition engine.

Topics covered

referral prediction AIcustomer referral modelreferral scoringword-of-mouth predictiongraph neural network referralKumoRFMrelational deep learningNPS predictionviral growth predictioncustomer advocacy scoringreferral program optimization

One Platform. One Model. Predict Instantly.

KumoRFM

Relational Foundation Model

Turn structured relational data into predictions in seconds. KumoRFM delivers zero-shot predictions that rival months of traditional data science. No training, feature engineering, or infrastructure required. Just connect your data and start predicting.

For critical use cases, fine-tune KumoRFM on your data using the Kumo platform and Data Science Agent for 30%+ higher accuracy than traditional models.

Book a demo and get a free trial of the full platform: data science agent, fine-tune capabilities, and forward-deployed engineer support.