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The table GME.PM_MATL_DTL_BAK is a critical component within Oracle E-Business Suite (EBS) versions 12.1.1 and 12.2.2, specifically in the Process Manufacturing (GME) module. This table serves as a backup or historical repository for material transaction details associated with process manufacturing batches. Below is a detailed technical and functional analysis of this table in the context of Oracle EBS.

1. Functional Context

The PM_MATL_DTL_BAK table is part of Oracle's Process Manufacturing (OPM) functionality, which is integrated into Oracle EBS. It stores historical or backup records of material transactions that occur during batch processing. This includes raw material consumption, by-product generation, and intermediate product movements. The table ensures data integrity by preserving transaction details even after primary records might be modified or purged.

2. Technical Structure

The table's schema typically includes columns such as:
  • BATCH_ID: References the batch record in GME_BATCH_HEADER.
  • MATERIAL_DETAIL_ID: Primary key for the material transaction.
  • INVENTORY_ITEM_ID: Links to MTL_SYSTEM_ITEMS_B.
  • TRANSACTION_QUANTITY: Quantity of material consumed or produced.
  • TRANSACTION_UOM: Unit of measure for the transaction.
  • LINE_TYPE: Indicates material type (ingredient, by-product, etc.).
  • CREATION_DATE, LAST_UPDATE_DATE: Audit columns.
The table inherits its structure from GME_PM_MATERIAL_DETAILS, with additional flags or metadata to denote backup status.

3. Integration with Other Modules

PM_MATL_DTL_BAK interacts with:
  • Inventory (INV): Validates item master data via MTL_SYSTEM_ITEMS_B.
  • Cost Management (CST): Provides material cost data for batch costing.
  • General Ledger (GL): Supports financial postings for material transactions.

4. Data Lifecycle

Records are inserted into this table during:
  • Batch completion or cancellation.
  • Data archiving/purge processes.
  • System-triggered backups for audit compliance.
The table is typically queried for historical reporting, dispute resolution, or regulatory audits.

5. Customization Considerations

Modifications to this table require caution due to:
  • Dependencies on OPM's core transaction logic.
  • Potential impacts on batch costing and inventory reconciliation.
  • Oracle's upgrade restrictions for customized schema objects.

6. Version-Specific Notes

In EBS 12.2.2, this table may include additional columns to support:
  • Enhanced audit trails required by newer compliance standards.
  • Integration with Oracle Fusion Middleware for data federation.

Conclusion

GME.PM_MATL_DTL_BAK plays a vital role in ensuring data resilience and auditability for process manufacturing transactions in Oracle EBS. Its design reflects Oracle's layered approach to data management, where operational tables are complemented by backup/repository structures. Administrators should prioritize understanding its relationships with other OPM tables and adhere to Oracle's data retention policies when managing this object.