Understanding the Opening Period in SAP PP: A Buffer for MRP Efficiency

In the fast-paced Production Planning (PP) world, efficiency is critical. SAP PP offers various tools to streamline material requirements planning (MRP), and the opening period is one such feature. This blog delves into the opening period and how it contributes to a smoother MRP process.

What is the Opening Period?

The opening period, defined in scheduling margin keys within SAP PP, represents a workday buffer time. It’s subtracted from the planned order start date to determine the order creation date. In simpler terms, it provides a lead time for the MRP controller to convert planned orders into actionable documents.

The Role of the Opening Period

The opening period serves two primary purposes:

• Buffer for Conversion: After MRP generates planned orders, the MRP controller might need time to review them and convert them into purchase requisitions or production orders. The opening period provides this window.
• Lead Time Consideration: During scheduling, the opening period is combined with lead times (procurement, production) to ensure on-time material availability.

Configuring the Opening Period

The opening period isn’t a universal setting. It’s defined within scheduling margin keys, which are then assigned to materials in the MRP 2 view of the material master. This allows for customization based on material types, lead times, and internal workflows.

Benefits of Using the Opening Period

• Improved MRP Efficiency: The opening period provides a buffer for conversion activities, helping prevent delays in creating purchase requisitions or production orders.
• Enhanced Planning Accuracy: Considering the opening period during scheduling leads to more realistic planned order start dates, reflecting the actual time needed for MRP processing.

In Conclusion

The opening period might seem minor, but ensuring a smooth flow within SAP PP is crucial. By understanding its purpose and configuration, you can leverage this feature to optimize your MRP processes and achieve better production planning results.