A planning time fence is a time period that is bordered by the current date and a specified date. Within this period, any changes to the material plan or master schedule are restricted, minimizing costly disruptions to shop floor and supplier schedules.
Key Facts
- Definition: The planning time fence is a time period that is bordered by the current date and a specified date. Within this period, any changes to the material plan or master schedule are restricted, minimizing costly disruptions to shop floor and supplier schedules.
- Purpose: The planning time fence serves as a guideline for establishing restrictions or changes in operating procedures. It helps differentiate between short-term and long-term planning, allowing for more flexibility in managing changes to the master production schedule (MPS).
- Time Fence Control: When launching the planning process, you can specify whether to use planning time fence control. This allows you to determine whether the planning process should consider the planning time fence and restrict changes within that period.
- Overwriting Master Schedule Entries: For an MPS plan, you have the option to overwrite master schedule entries outside the planning time fence. This means that changes made to the MPS beyond the planning time fence will be considered during the planning process.
- Requisitions and Planning Time Fence: Purchase requisitions and internal requisitions are not subject to planning time fence processes. This means that the planning time fence does not affect the processing of requisitions.
Purpose
The planning time fence serves as a guideline for establishing restrictions or changes in operating procedures. It helps differentiate between short-term and long-term planning, allowing for more flexibility in managing changes to the master production schedule (MPS).
Time Fence Control
When launching the planning process, you can specify whether to use planning time fence control. This allows you to determine whether the planning process should consider the planning time fence and restrict changes within that period.
Overwriting Master Schedule Entries
For an MPS plan, you have the option to overwrite master schedule entries outside the planning time fence. This means that changes made to the MPS beyond the planning time fence will be considered during the planning process.
Requisitions and Planning Time Fence
Purchase requisitions and internal requisitions are not subject to planning time fence processes. This means that the planning time fence does not affect the processing of requisitions.
Conclusion
The planning time fence is a valuable tool for managing changes to the material plan or master schedule. By restricting changes within a specified period, it helps to minimize disruptions to shop floor and supplier schedules, ensuring a smooth and efficient production process.
References
- Oracle Master Scheduling/MRP and Supply Chain Planning: Time Fence Control
- Oracle Master Scheduling/MRP and Supply Chain Planning: Overview of Time Fence Planning
- SAP Community: What is planning time fence
FAQs
What is a planning time fence?
A planning time fence is a time period that restricts changes to the material plan or master schedule, minimizing disruptions to production schedules.
What is the purpose of a planning time fence?
The planning time fence helps differentiate between short-term and long-term planning, allowing for more flexibility in managing changes to the master production schedule (MPS).
Can I overwrite master schedule entries outside the planning time fence?
Yes, for an MPS plan, you have the option to overwrite master schedule entries outside the planning time fence.
Are purchase requisitions and internal requisitions subject to planning time fence processes?
No, purchase requisitions and internal requisitions are not subject to planning time fence processes.
What are the benefits of using a planning time fence?
Benefits of using a planning time fence include minimizing disruptions to production schedules, improving efficiency, and enhancing overall planning accuracy.
How can I establish planning time fence control?
You can establish planning time fence control when setting up Oracle Master Scheduling/MRP and Supply Chain Planning.
Can I specify whether to use planning time fence control when launching the planning process?
Yes, you can specify whether to use planning time fence control when launching the planning process.
What is the impact of the planning time fence on MRP firm planned orders?
A planning time fence can be automatically created for MRP firm planned orders, restricting changes to these orders within the specified time period.