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The PA_ALLOC_RUN_SOURCES table in Oracle E-Business Suite (EBS) versions 12.1.1 and 12.2.2 is a critical component of the Project Accounting (PA) module, specifically designed to support the allocation process. This table stores detailed information about the source transactions that are processed during an allocation run, enabling organizations to distribute costs, revenue, or other financial metrics across multiple projects, tasks, or other entities based on predefined rules. Below is a detailed breakdown of its structure, purpose, and usage within Oracle EBS.

Purpose and Functionality

The PA_ALLOC_RUN_SOURCES table acts as a repository for source data used in allocation runs. Allocations in Oracle Projects are used to distribute shared costs, such as overhead or indirect expenses, across multiple projects or tasks based on allocation rules (e.g., headcount, square footage, or labor hours). This table captures transactional data (e.g., expenditure items, invoices, or other chargeable items) that serve as inputs for allocation calculations. Each record in the table represents a source transaction linked to an allocation run, ensuring traceability and auditability.

Key Columns and Relationships

The table includes several important columns that define its role in the allocation process:
  • ALLOCATION_RUN_ID: Foreign key linking to PA_ALLOC_RUNS, identifying the specific allocation run.
  • SOURCE_TYPE_CODE: Indicates the type of source data (e.g., expenditure items, invoices, or manual adjustments).
  • SOURCE_ID: Unique identifier for the source transaction (e.g., EXPENDITURE_ITEM_ID from PA_EXPENDITURE_ITEMS).
  • PROJECT_ID: References the project associated with the source transaction.
  • TASK_ID: References the task (if applicable) within the project.
  • AMOUNT: The monetary value or quantity being allocated.
  • STATUS_CODE: Tracks the processing status (e.g., pending, processed, or errored).
The table maintains relationships with other key PA tables, such as PA_ALLOC_RUNS (allocation run headers), PA_PROJECTS (project definitions), and PA_TASKS (task details).

Integration with Allocation Workflow

The allocation process in Oracle Projects typically follows these steps:
  1. Source Identification: Transactions meeting allocation criteria are identified and inserted into PA_ALLOC_RUN_SOURCES.
  2. Rule Application: Allocation rules (defined in PA_ALLOC_RULES) are applied to the source data to determine distribution bases.
  3. Execution: The allocation engine processes the sources, generating allocation lines (stored in PA_ALLOC_RESULTS).
  4. Post-Processing: Statuses in PA_ALLOC_RUN_SOURCES are updated to reflect success or failure.

Technical Considerations

For performance optimization, Oracle indexes key columns like ALLOCATION_RUN_ID and SOURCE_ID. The table is also purged periodically via concurrent programs to manage data volume. Customizations or extensions to the allocation process may require modifications to this table, though caution is advised due to its integration with core PA functionality.

Conclusion

The PA_ALLOC_RUN_SOURCES table is a foundational element in Oracle EBS Project Accounting, enabling precise and auditable cost allocations. Its design ensures flexibility to accommodate diverse allocation methodologies while maintaining data integrity. Administrators and implementers should familiarize themselves with its structure to troubleshoot allocation issues or enhance allocation processes.