How To Fix CN487 - The exection factor in the network has been reduced from & to 1

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 487

• Message text: The exection factor in the network has been reduced from & to 1

What causes this issue?

The quantity you entered in the network would lead to an execution
factor of &V1&.
The execution factor cannot exceed 999.

System Response

The system sets the execution factor in the network header to 1.

How to fix this error?

Check the quantity structure of the network.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN487 - The exection factor in the network has been reduced from & to 1 ?

  The SAP error message CN487 indicates that the execution factor in a network has been reduced from a certain value (represented by &) to 1. This typically occurs in the context of project management and network scheduling within SAP's Project System (PS) module.
  Cause:
  The execution factor is a parameter that influences the scheduling and execution of activities within a project network. The reduction of the execution factor to 1 usually indicates that the system has determined that the activity can only be executed at a normal rate, possibly due to constraints such as:
  
  Resource Availability: There may not be enough resources (e.g., labor, machinery) available to execute the task at the originally planned rate.
  Scheduling Conflicts: Other activities may be scheduled at the same time, leading to a bottleneck.
  Changes in Project Plan: Adjustments in the project plan or network structure may have necessitated a change in the execution factor.
  Manual Adjustments: A user may have manually adjusted the execution factor for specific reasons.
  
  Solution:
  To resolve the CN487 error, consider the following steps:
  
  
  Check Resource Availability: Ensure that the necessary resources are available for the activity. If resources are limited, consider reallocating or adding more resources.
  
  
  Review Network and Activity Dependencies: Examine the network structure and dependencies between activities. Look for any scheduling conflicts that may be causing the execution factor to be reduced.
  
  
  Adjust Execution Factor: If appropriate, you can manually adjust the execution factor back to a higher value, provided that the resources and scheduling allow for it.
  
  
  Analyze Project Changes: If there have been recent changes to the project plan, review those changes to understand their impact on the execution factor.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing execution factors and network scheduling.
  
  
  Engage with Project Management: If the issue persists, it may be beneficial to engage with project management or a SAP consultant to analyze the situation in detail.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CN21 (Create Network), CN22 (Change Network), or CN41 (Network Overview) to manage networks and activities.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Training and Documentation: Familiarize yourself with SAP Project System documentation and training materials to better understand network scheduling and execution factors.
  
  By following these steps, you should be able to identify the cause of the CN487 error and implement a suitable solution.