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The FND_DATA_GROUP_UNITS table in Oracle E-Business Suite (EBS) 12.1.1 and 12.2.2 is a critical repository table that plays a fundamental role in managing data groups and their associated units within the application framework. Data groups are logical constructs used to partition and organize data in Oracle EBS, particularly in multi-organization or multi-entity environments. This table serves as a bridge between data groups and their corresponding units, ensuring proper data segregation, security, and access control.

Purpose and Functionality

The primary purpose of FND_DATA_GROUP_UNITS is to define the relationship between data groups and the units (such as operating units, inventory organizations, or other business entities) that belong to them. This table enables the system to enforce data access policies at the unit level, ensuring that users only interact with data relevant to their assigned responsibilities. It is a core component of Oracle's Multi-Org architecture, which allows multiple business units to operate within a single installation of Oracle EBS while maintaining data isolation.

Key Columns and Structure

The table consists of several important columns:
  • DATA_GROUP_ID: Foreign key referencing FND_DATA_GROUPS, identifying the parent data group.
  • APPLICATION_ID: Identifies the Oracle application associated with the unit.
  • UNIT_TYPE: Specifies the type of unit (e.g., ORG for operating unit).
  • UNIT_CODE: The actual code or identifier of the unit within its type.
  • CREATION_DATE and CREATED_BY: Audit columns tracking record creation.
  • LAST_UPDATE_DATE and LAST_UPDATED_BY: Audit columns tracking modifications.

Integration with Other Components

FND_DATA_GROUP_UNITS integrates with several key Oracle EBS components:
  • Multi-Org Architecture: Works with HR_ORGANIZATION_UNITS and related tables to implement organization-based data partitioning.
  • Security Framework: Interfaces with FND_RESPONSIBILITY and FND_USER_RESP_GROUPS to enforce data access rules.
  • Application Modules: Various functional modules (GL, AP, AR, etc.) reference this table to determine data visibility.

Technical Considerations

In Oracle EBS 12.1.1 and 12.2.2, the table is part of the Application Object Library (FND) product. Key technical aspects include:
  • The table is typically populated during system setup and configuration.
  • Changes to this table can significantly impact data visibility and security.
  • Direct modifications should be performed carefully, preferably through Oracle-provided APIs.
  • The table participates in various database views that simplify data access for reporting purposes.

Implementation Scenarios

Common scenarios involving this table include:
  • Setting up new operating units and assigning them to appropriate data groups.
  • Modifying data access patterns during organizational restructuring.
  • Troubleshooting data visibility issues in multi-org environments.
  • Implementing custom security models that extend Oracle's standard functionality.

Maintenance and Best Practices

When working with FND_DATA_GROUP_UNITS, it's recommended to:
  • Use Oracle-provided APIs rather than direct SQL modifications.
  • Thoroughly test changes in non-production environments first.
  • Document all modifications for audit and troubleshooting purposes.
  • Consider the impact on concurrent programs and custom reports.
The FND_DATA_GROUP_UNITS table remains a critical component in Oracle EBS implementations, particularly in complex, multi-organization deployments. Its proper configuration and maintenance are essential for ensuring correct data partitioning and security throughout the application landscape.