How To Fix 6P496 - Date in the planning time fence (& - &) deleted

6P496 - Overview

• Message type: E = Error

• Message class: 6P - Messages for planned independent requirements (Appl.area 60)

• Message number: 496

• Message text: Date in the planning time fence (& - &) deleted

What causes this issue?

In Customizing for Demand Management, you specified that the system is
to issue a warning if changes are made within the planning time fence.
The planning time fence represents a period during which the
<GL:demand_program>demand program</> is protected from any changes.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

Schedule lines were deleted in the planning time fence.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

6P496 - Details

• The SAP error message 6P496, which states "Date in the planning time fence (& - &) deleted," typically occurs in the context of production planning and scheduling within SAP's Advanced Planning and Optimization (APO) or similar modules. This error indicates that a date that was previously within the planning time fence has been deleted or is no longer valid.
  
  Cause:
  
  Changes in Planning Parameters: The planning time fence may have been altered, leading to the deletion of dates that were previously considered valid.
  Master Data Changes: Changes in the master data (like material master, production versions, or resource availability) can affect the planning time fence.
  Planning Run Issues: If a planning run is executed and the settings or parameters are not aligned with the current data, it can lead to inconsistencies.
  Manual Adjustments: Manual changes made to the planning data or scheduling can inadvertently lead to the deletion of dates.
  
  
  Solution:
  
  Review Planning Time Fence Settings: Check