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UI Data Protection – Mask Segmented Material Description based on User Groups

Introduction

In this blog post, we will learn how to mask different segment of Material Description for different user groups in transactions SE16 and MM03.

Attribute based authorizations are dynamic determination mechanism which determines whether a user is authorized to access specific data sets which can be based on the context attributes of the user and data (for example, price of certain sensitive materials are masked).

Requirement

In this scenario, Material Description is made up of 3 pieces or segments of data. In other words, Material Description comprises 30-characters and divided into 3-sections of 10-character segment.

User want to mask the Material Description partially but different segment for different User Groups. For Example, for User Group 01, first segment will remain masked and second and third segment will remain visible (**********SEGEMENT002SEGMENT003), for User Group 02, second segment will remain masked and first and third segment will remain visible (SEGEMENT001**********SEGMENT003), and for User Group 03, third segment will remain masked and first and second segment will remain visible (SEGMENT001SEGMENT002**********).

In order to distinguish one User Group from other, we have created three different PFCG Roles – LEVEL01, LEVEL02, and LEVEL03. We also have three different Users – TESTUSER01, TESTUSER02, and TESTUSER03.

User “TESTUSER01” is assigned with PFCG Role “LEVEL01”, User “TESTUSER02” is assigned with PFCG RoleLEVEL02”, and User “TESTUSER03” is assigned with PFCG RoleLEVEL03

The end result for TESTUSER01 which is assigned with PFCG Role “LEVEL01” will appear as:

SE16

MM03

The end result for TESTUSER02 which is assigned with PFCG Role “LEVEL02” will appear as:

SE16

MM03

The end result for TESTUSER03 which is assigned with PFCG Role “LEVEL03” will appear as:

SE16

MM03

Prerequisite

UI Data Protection Masking for SAP S/4HANA is a solution that allows you to protect restricted and sensitive data values at field level by masking, clearing, or disabling fields for those users who are not authorized to view or edit this data.

Product “UI data protection masking for SAP S/4HANA” is used in this scenario to protect sensitive data at field level and must be installed in the S/4HANA system.

The product is a cross-application product which can be used to mask/protect any field in SAP GUISAPUI5/SAP FioriCRM Web Client UI, and Web Dynpro ABAP.

Let’s begin

Configuration to achieve masking

Logical Attribute is a functional modelling of how any attribute such as Social Security NumberBank Account NumberAmountsPricing informationQuantity etc. should behave with masking.

Configure Logical Attribute

Follow the given path:

SPRO -> SAP NetWeaver -> UI Data Protection Masking for SAP S/4HANA -> Maintain Metadata Configuration -> Maintain Logical Attributes

Material Number

Material Description

Maintain Technical Address

In this step, we will associate the Technical Address of the fields to be masked with the Logical Attributes.

You can get the Technical Address of a GUI field by pressing “F1” on the field.

Follow the given path:

SPRO -> SAP NetWeaver -> UI Data Protection Masking for SAP S/4HANA -> Maintain Metadata Configuration -> Maintain Technical Address

Follow below mentioned steps:

Under “GUI Table Field Mapping”, maintain technical address for following fields.

Mass Configuration

For all the above entries, “Mass Configuration” report should be executed which is required to generate technical addresses.

Follow below mentioned steps:
  • Select the entry in GUI Table Field Mapping
  • Click on “Mass Configuration” button
  • Click on “Select All” button
  • Click on “Generate Customizing” button
  • Save the information

Maintain Masking Pattern

In this step, we will configure Masking Patterns using the Masking Pattern Set strategy which will determine the way masked masked values will be displayed on the UI. Through Masking Pattern Set strategy, the original value of the field is masked as per the masking pattern maintained.

Follow the given path:

SPRO -> SAP NetWeaver -> UI Data Protection Masking for SAP S/4HANA -> Optional Configuration -> Maintain Masking Pattern – Follow below mentioned steps:

Maintain Field-Level Actions

In this step, we will configure the actions to be applied to a field that is configured for UI data protection. An action determines how a field appears and behaves when it is rendered on the user interface. Predefined patterns can be applied to specific actions to define how the field is displayed.

Follow the given path:

SPRO -> SAP NetWeaver -> UI Data Protection Masking for SAP S/4HANA -> Optional Configuration -> Maintain Field-Level Actions – Follow below mentioned steps:

Policy Configuration

Policy is a combination of rules and actions which are defined in one or more blocks. The actions are executed on a sensitive entity (field to be protected) which has to be assigned to a Policy. The conditions are based on contextual attributes which help derive the context.

Context Attributes are logical attributes which are used in designing the rules of a policy. They are mapped to fields which are used to derive the context under which an action is to be executed on a sensitive entity.

Sensitive Entities are logical attributes which are sensitive and need to be protected from unauthorized access.

Follow the given path:

SPRO -> SAP NetWeaver -> UI Data Protection Masking for SAP S/4HANA -> Data Protection Configuration -> Maintain Policy Details for Attribute based Authorizations – Follow below mentioned steps:

  • Click on “New Entries” button
  • Enter “Policy Name” as “POL_MATDESCR_SEGMENT
  • Select “Type” as “Field Level Masking
  • Enter “Description” as “Mask Segmented Material Description
  • Click on “Save” button

Write following logic into Policy

Maintain Field Level Security and Masking Configuration

Here, we will define how masking will behave with the logical attribute that we created in above step.

Follow the given path:

SPRO -> SAP NetWeaver -> UI Data Protection Masking for SAP S/4HANA -> Data Protection Configuration -> Maintain Field Level Security and Masking Configuration

Follow below mentioned steps:
  • Click on “New Entries” button
  • Enter “Sensitive Entity” as “LA_MATDESCR” and press “Enter” key. “Description” and “Application Module” will get populated in corresponding fields
  • Check “Enable Configuration” check-box
  • Select “Attribute Based Authorization” option
  • Enter “Policy Name” as “POL_MATDESCR_SEGMENT
  • Click on “Save” button

Conclusion

In this blog post, we have learnt how Attribute-based masking is achieved to mask different segment of Material Description for different user groups in transactions SE16 and MM03.

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