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The CZ.CZ_ATP_REQUESTS table in Oracle E-Business Suite (EBS) 12.1.1 or 12.2.2 is a critical data structure within the Configurator (CZ) schema, primarily used to manage Available-to-Promise (ATP) requests for configured items. ATP functionality ensures real-time inventory and supply chain visibility by validating whether a product can be delivered within a requested timeframe. This table stores transactional data related to ATP checks performed during the configuration and order fulfillment processes, enabling businesses to maintain accurate commitments to customers. ### **Purpose and Functionality** The CZ.CZ_ATP_REQUESTS table acts as a repository for ATP inquiry records generated when users request availability checks for configured products. It captures essential details such as request identifiers, item configurations, demand dates, quantities, and ATP results. This data is leveraged by Oracle Configurator and Order Management modules to validate product availability before confirming orders, ensuring alignment with inventory, production schedules, and supplier lead times. ### **Key Columns and Structure** The table comprises several important columns, including: - REQUEST_ID: A unique identifier for each ATP request. - CONFIGURATION_ID: Links to the configured item in CZ_CONFIGURATIONS. - INVENTORY_ITEM_ID: References the item in MTL_SYSTEM_ITEMS_B. - ORGANIZATION_ID: Specifies the inventory organization. - QUANTITY: The requested quantity for ATP validation. - REQUEST_DATE: Timestamp of the ATP inquiry. - ATP_STATUS: Indicates whether the item is available (e.g., 'Y' for available, 'N' for unavailable). - ATP_RESULT_DATE: The confirmed delivery date if available. ### **Integration with Oracle EBS Modules** 1. **Oracle Configurator (CZ)**: When users configure complex products, the system triggers ATP checks via this table to validate component availability. 2. **Order Management (OM)**: Before order submission, ATP results from CZ_ATP_REQUESTS ensure accurate delivery promises. 3. **Inventory Management (INV)**: The table interacts with MTL_ATP_RULES and MTL_DEMAND to assess real-time stock levels. 4. **Advanced Supply Chain Planning (ASCP)**: For organizations using planning tools, ATP data feeds into supply chain optimization. ### **Performance and Customization Considerations** - **Indexing**: Proper indexing on REQUEST_ID, CONFIGURATION_ID, and INVENTORY_ITEM_ID is critical for performance. - **Purge Strategies**: Historical ATP data should be archived or purged to maintain table efficiency. - **Extensions**: Custom columns or triggers may be added to support business-specific ATP logic. ### **Common Use Cases** - **Order Promising**: Sales teams use ATP results to commit realistic delivery dates. - **Backorder Prevention**: The table helps identify shortages before order confirmation. - **Supply-Demand Alignment**: Procurement teams analyze ATP trends to adjust inventory policies. ### **Conclusion** The CZ.CZ_ATP_REQUESTS table is a cornerstone of Oracle EBS’s ATP framework, bridging configuration, inventory, and order fulfillment processes. Its structured data ensures accurate availability checks, enhancing customer satisfaction and operational efficiency. Proper maintenance and integration with other modules are essential for maximizing its utility in supply chain management.