Case Study: MILKRUN achieves lowest-cost customer acquisition and 45% new-customer growth in New Zealand with Partnerize

How affiliate became MILKRUN’s lowest-cost channel for customer acquisition

MILKRUN, an app-first quick-response delivery service acquired by Woolworths after merging with Metro60, needed a scalable marketing channel to drive new and returning customers locally and abroad. With affiliate marketing new to the team and card-linked-offer partners identified as high-value targets, MILKRUN engaged Partnerize—using the Partnerize platform and its Maximize services (integrated with Branch)—to onboard and optimize an affiliate program.

Partnerize supplied a dedicated Services Lead to manage partner negotiation, campaign execution and reporting, rapidly turning affiliate into MILKRUN’s lowest-cost acquisition channel. The program delivered measurable impact: ROI 18% above industry benchmark, 45% growth in new customer acquisition in New Zealand (2023), card-linked-offer partners like Furthr contributing nearly 70% of program revenue, higher AOV from cross-category bundling, and strong quarter-over-quarter revenue gains (Q1>Q2: 4591.4%; Q2>Q3: 11.5%; Q3>Q4: 26.9%).

Milkrun

Mariah Poullos

Ecommerce Marketing Manager