Maintain Time Fence – A summary of the activity

You can use this screen to define the time fence information for MRP generated orders that also considers actual demands, new receipts that are not planned and pending receipts that are in “Suggested Orders” during planning process. A time fence policy allows planning run to selectively amend receipts within specified lead-time. Time fence rules specify whether MRP can change the orders of an item automatically. If it is allowed to make the changes, then how much it can be restricted in terms of quantity or due date.

By specifying the time fence days you can affect the system to automatically amend the orders based on the quantity or time tolerances specified. You can specify the quantity in terms of percentage both in positive and negative sides for amendment.  Likewise date can also be specified in terms of number of days the orders are allowed for amendment. For example, if the time fence days is defined as 10days, the quantity to be increased by 5% or decreased by 3% and the time in days to be increased by 4days or decreased by 3days. It indicates that the time fence difference from the due date of an order is 10 days. If the current date falls within this time fence, then the system automatically amends the orders for the specified quantity and time tolerances. The time fence information is used during automatic amendment of MRP orders that are in “Accepted” status and not in “Requested” or “Firmed” status.