502551 – Microsoft Purview compliance portal: Unique Counting of EDM Matches

Product:

Purview Communication Compliance

Platform:

Web, World tenant

Status:

In development

Change type:

Links:

Details:

Providing a new mode to count EDM Matches where each row is counted once in addition to the current behavior where each primary element is counted once

Change Category:
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Scope:
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Release Phase:
General Availability, Preview

Created:
2025-09-25

updated:
2025-09-25

Public Preview Start Date

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Docu to Check

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MS workload name

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summary for non-techies**

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Direct effects for Operations**

Data Reporting Accuracy
The introduction of a new counting mode may lead to confusion in data reporting, as users may not be aware of the change in how matches are counted, potentially leading to misinterpretation of compliance data.
   - roles: Compliance Officer, Data Analyst
   - references: https://techcommunity.microsoft.com/t5/security-compliance-identity/microsoft-purview-compliance-portal-unique-counting-of-edm/ba-p/3741230

User Training and Adaptation
Users may require additional training to understand the new counting method, which could lead to temporary inefficiencies and frustration if not properly communicated.
   - roles: Compliance Officer, IT Support
   - references: https://techcommunity.microsoft.com/t5/security-compliance-identity/microsoft-purview-compliance-portal-unique-counting-of-edm/ba-p/3741230

Configutation Options**

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Data Protection**

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IT Security**

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explanation for non-techies**

Imagine you are managing a library. In this library, you have a system that tracks how many times each book is borrowed. Previously, the system would count each chapter of a book separately. So, if someone borrowed a book and read five chapters, it would count as five separate borrowings. This was useful for understanding which parts of the book were most popular, but it didn't give a clear picture of how many times the entire book was borrowed.

Now, imagine that the library introduces a new feature in their tracking system. This feature allows the system to count each book as a single borrowing, regardless of how many chapters are read. This provides a clearer view of the book's overall popularity, rather than just its individual parts.

Similarly, Microsoft Purview's compliance portal is introducing a new way to count EDM (Exact Data Match) matches. Previously, the system counted each primary element of data separately, much like counting each chapter of a book. This method was useful for detailed analysis but didn't always give a straightforward view of data usage. With the new counting mode, each row of data is counted once, providing a more holistic view of data matches, similar to counting the entire book as one borrowing.

This change is particularly beneficial for organizations that need a clearer understanding of data usage and compliance without getting bogged down in the minutiae of individual data elements. It simplifies the process of tracking and reporting, making it easier for managers, HR staff, and legal teams to understand and act on the information provided by the compliance portal.