Replacing a Legacy Static MMM with Fieldstream's Platform for Continuous Decision-Making and Retention Analysis

01.09.2025

Project Summary

Fieldstream helped an Italian sportsbet operator to evaluate its investments in team sponsorships - namely, a big team and several smaller teams. As there was an upcoming decision to be made regarding a new investment in the bigger team, Fieldstream was tasked with gaining insights into their Marketing ROI and the impact of their sponsorships. The results: an 8% uplift in Marketing ROI and an organization aligned on the overall marketing budget strategy.

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Project Details

“With Fieldstream, we are not able to make informed budget decisions when needed and better direct our efforts to increase retention, in line with our company strategy." 
— Marketing Manager, Swedish iGaming Brand
Background

A Swedish iGaming brand had previously done MMM as part of a project with an external agency. Now, they wanted to implement a more advanced solution with regular data updates for frequent decision-making. They were also interested in seeing if Fieldstream's platform could be useful for helping with retention.

Challenges
  • Old legacy MMM model – did not provide up-to-date insights.
  • Struggled with low retention – even if NDC numbers looked fine.
  • Wanted increased ROI for total deposits.
Why it Mattered
  • The company wanted more frequent budget decisions based on the latest data.
  • Needed actionable insights on how to activate specific customer cohorts.
  • Partly due to retention problems, the Marketing ROI was not at a satisfactory level.
Fieldstream's Objectives
  1. Improve retention.
  2. Have up-to-date decision-making material for budgeting.
  3. Improve Marketing ROI.

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Fieldstream Solution

1. Data Quality Audit & Pipeline
  • Set up connectors to media platforms and data warehouse.
  • Set up a robust pipeline with monthly data refresh.
2. Custom MMM Build
  • Core hierarchical Bayesian model, weekly granularity, channel-specific ad-stock and saturation curves.
  • Specific focus on different customer cohorts to enable retention analysis.
3. Fieldstream Dashboard
  • Monthly auto-refresh; executive-ready ROI reports.
  • Optimizer and scenario planning tool for the team's ongoing work.
  • Possibility to estimate effect on different customer cohorts in budget planning.
5. Review of LTV Model
  • Reviewed the existing LTV model and suggested improvements to make sure that ROI calculations were accurate.

Key Findings

1. Having a tailored marketing strategy helped retention
  • Evidence: There was a clear optimization potential for the identified customer cohort.
  • Action: Create a marketing plan for increased retention.
2. DOOH was underutilized
  • Evidence: There was strong ROI and low saturation at its current spend level.
  • Action: Increase DOOH in combination with social.
3. Several affiliate sources led to high churn of customers
  • Evidence: Identified affiliates had much lower customer LTV than average.
  • Action: Cut out the non-performing affiliates.
Results
  • We saw a 11% retention improvement for the analyzed customer cohort.
  • 10% uplift in overall Marketing ROI.
  • The team now has a tool to make sound operational decisions.

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