How To Fix C7079 - WBS element &: Backwards scheduling is not possible without a finish date

SAP Error Message - Details

• Message type: E = Error

• Message class: C7 - Scheduling

• Message number: 079

• Message text: WBS element &: Backwards scheduling is not possible without a finish date

CAUSE&
You want to backward schedule a WBS element, although a basic finish
date has not been entered in either the projection definition, WBS
element or network header for the relevant activities.
Network scheduling:
You want to network schedule a WBS element backward, although a basic
finish date has not been enterd in the corresponding network headers.

System Response

The WBS element is not scheduled.

How to fix this error?

Enter a basic finish date in at least one of the objects mentioned
above.
Network scheduling:
Enter a basic finish date in at least one network header.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C7079 - WBS element &: Backwards scheduling is not possible without a finish date ?

  The SAP error message C7079 indicates that backward scheduling cannot be performed for a Work Breakdown Structure (WBS) element because it lacks a finish date. This error typically arises in project management scenarios where scheduling is critical, and the system requires a defined end date to calculate the project timeline effectively.
  Cause:
  
  Missing Finish Date: The primary cause of this error is that the WBS element does not have a defined finish date. Backward scheduling relies on knowing when a project or task is supposed to end to calculate the start dates of preceding tasks.
  Incorrect Settings: There may be settings in the project management configuration that prevent the system from determining a finish date.
  Incomplete Project Planning: The project may not be fully planned, meaning that not all necessary dates and dependencies have been established.
  
  Solution:
  
  
  Define a Finish Date: 
  
  Navigate to the WBS element in question and ensure that a finish date is set. This can typically be done in the project planning or WBS element maintenance screens.
  If the finish date is not known, you may need to estimate it based on project requirements or milestones.
  
  
  
  Check Project Settings:
  
  Review the project settings to ensure that all necessary parameters for scheduling are correctly configured. This includes checking the project type and ensuring that it allows for backward scheduling.
  
  
  
  Review Dependencies:
  
  Ensure that all tasks and activities related to the WBS element have been properly defined, including their dependencies and durations. This will help the system calculate the finish date.
  
  
  
  Use Forward Scheduling: 
  
  If backward scheduling is not feasible, consider using forward scheduling instead, which calculates the finish date based on the start date and duration of tasks.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help resources for specific instructions on how to set finish dates and configure project scheduling.
  
  
  
  Related Information:
  
  SAP Project System (PS): This error is commonly encountered in the SAP Project System module, which is used for project planning, execution, and monitoring.
  Scheduling Types: Understanding the difference between backward and forward scheduling can help in determining the best approach for your project.
  Project Planning Best Practices: Familiarize yourself with best practices in project planning to avoid similar issues in the future, such as ensuring all elements are fully defined before attempting to schedule.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.