Recovering $500K+ through master data cleanup before AI rollout

We’re a regional water utility that just finished a major ERP migration, and the biggest lesson we learned was fixing master data quality before we could even think about AI. When we started planning the migration from our legacy billing and asset management systems, we discovered over $500,000 in unreconciled payments sitting in the old databases. Payments existed but weren’t properly matched to customer accounts because of duplicate records, variant naming, and inconsistent account numbers across systems.

We brought in a consulting team to do a full data audit and remediation before go-live. They profiled all our legacy data, built matching logic to consolidate duplicate customer and asset records, and implemented human review for high-risk cases. For the lost payments, they used pattern matching on amount, date, and customer name to reconcile transactions. We recovered most of that missing cash and got our customer accounts accurate.

The real win was what came after. With clean master data in the new ERP, we could deploy demand forecasting and predictive maintenance models that actually worked. Before cleanup, we couldn’t trust the data enough to let AI make recommendations. Now our asset maintenance scheduling is more accurate, billing disputes dropped significantly, and we’re running conservation programs based on solid customer segmentation. If we’d skipped the data work and gone straight to AI, we’d have been making decisions on garbage.

This mirrors what we’re dealing with in procurement master data. We have the same supplier appearing five or six times under different legal entities or name formats, and it’s killing our spend analytics. Before we can deploy any AI for supplier risk or category optimization, we need to consolidate that mess. How long did your remediation phase take before you felt confident migrating to the new system?

Remediation took about four months. First month was profiling and scoping the issues, next two were building matching rules and running consolidation logic, last month was human review and final validation. We staged the migration so critical operational data went live first with strict monitoring, then historical data later. That let us confirm quality before full cutover.

This is a great example of why data governance has to come before AI, not after. We see too many organizations try to layer machine learning onto messy ERP data and then wonder why the models hallucinate or produce recommendations nobody trusts. The ROI on fixing master data first is clear—you recovered cash immediately and unlocked AI capabilities down the road.

We set up automated quality checks in the new ERP that flag anomalies and route them to data stewards for resolution. Validation rules prevent new records from being created without required fields, which catches most issues at the source. For assets, internal cleanup was sufficient—we standardized asset IDs, linked maintenance history, and filled in missing installation dates where possible. The consulting team used some external reference data for customer address validation but most of the enrichment was reconciling our own fragmented records.

Curious about the predictive maintenance piece. We manage a lot of infrastructure assets and our maintenance records are fragmented across paper logs, spreadsheets, and an old CMMS. If we can’t trust asset IDs or service history, I don’t see how we’d get reliable failure predictions. Did you have to enrich your asset master with external data or was internal cleanup enough?