M&A & Migration Consolidation

Two Companies, Twice The Customers

After an acquisition or a system migration, the same customers and vendors exist in both sets of systems under different IDs, names and formats. Until they are resolved, every report double counts and every integration guesses.

Day One After The MergerWithout an identity layer
acquirer.crmContoso Retail GroupCustomer since 2017Customer 1
target.crmContoso RetailCustomer since 2020Customer 2
target.apContoso Retail Grp.Vendor · different bank detailsUnchecked

The combined company reports two customers and pays two vendors. It is one customer and one vendor in each case.

The Problem

Overlap You Can’t See Until It Costs You

Every deal model assumes a number for customer overlap, cross-sell and vendor consolidation. Then integration starts, and nobody can say which of the acquired company’s customers were already yours, because the two companies never used the same identifiers.

System migrations have the same problem in miniature. Moving from one CRM or ERP to another, or merging regional instances, brings years of duplicates with it. Load them as they are and the new system starts life with the old system’s mess.

Doing it by hand takes months and is never finished: spreadsheets of possible matches, reviewed by people who do not know either customer base. Meanwhile reporting double counts, and duplicate vendors get paid twice.

Double-Counted Customers

Combined customer counts and revenue are overstated wherever the two bases overlap.

Synergies Out Of Reach

Cross-sell and vendor consolidation depend on knowing which records are the same.

Months Of Spreadsheets

Manual matching across two companies is slow, error-prone and never complete.

The Solution

Resolve Before You Consolidate

Land both companies’ customer and vendor data in the same platform and resolve it as one set. Every customer and vendor that appears on both sides gets one ID, with every source record still attached.

Use the resolved set to measure overlap, plan the consolidation and load the target system. Records that arrive after cutover join the same IDs, so the clean-up does not have to be repeated.

Combined Customer Base
Both companies3 records
acquirer.crmContoso Retail Groupcontoso.com · Chicago, IL
target.crmContoso Retailcontoso.com · 1 Main St, Chicago
target.apContoso Retail Grp.Tax ID 36-1180442
Zingg
One customer1 entity
ZINGG_ID · e7d3-4b20Resolved
Contoso Retail Group
acquirer.crmtarget.crmtarget.ap

Overlap is measured, not guessed, and both sides keep their source records.

Measure The Real Overlap

Know exactly which customers and vendors the two companies share.

One ID Across Both Sides

Each entity maps to its records in the acquirer’s and the target’s systems.

Load A Clean System

Migrate resolved entities instead of carrying old duplicates forward.

Where Zingg Sits

The Identity Layer Under Master Data

Zingg runs as a workload inside your data platform and gives every entity one persistent ZINGG_ID. Everything above it reads the same resolved entities.

Used by
BI & dashboardsAI agents & RAGOperational appsReverse ETLData science
Your data platform
DatabricksSnowflakeMicrosoft FabricGCPAWS

The same layer powersCustomer Analytics & MarketingFinancial Crime & RiskPrivacy & ComplianceSupply Chain & ProcurementProduct 360AI & Data Foundations

Consolidation, Without The Spreadsheets

Matching That Adapts

Zingg learns from pairs you label across both data sets, with company-name dictionaries and exact rules on tax IDs. How Zingg matches

Scales To Millions

Blocking keeps comparisons manageable even when both customer bases are large. Scale

Persistent ZINGG_ID

Every merged entity keeps one ZINGG_ID through the migration and after it.

Keep It Clean After Cutover

The incremental flow matches new records from either side to existing IDs.

FAQ

M&A And Migration Questions

How quickly can we measure customer overlap after a deal?

As soon as both data sets are in your data platform and a model is trained on a set of labelled pairs. Zingg then resolves both sets together and reports which entities appear on both sides.

Can it handle different data formats from each company?

Yes. You choose which fields to match on, and Zingg learns from labelled examples how much each field matters, even when formats and naming conventions differ.

Does the data have to leave our platform?

No. Zingg runs inside Databricks, Snowflake, Microsoft Fabric, Google Cloud or AWS.

What about records created after the migration?

Incremental runs match new and updated records to existing ZINGG_IDs, so duplicates do not creep back in.

Know What You Actually Acquired

Resolve both companies’ customers and vendors in your own data platform.