How To Fix FCC1307 - Cannot specify task &1 as a predecessor of this task

FCC1307 - Overview

• Message type: E = Error

• Message class: FCC1 - Messages in Financial Closing Cockpit

• Message number: 307

• Message text: Cannot specify task &1 as a predecessor of this task

What causes this issue?

To specify task &v1& as a predecessor of this task, task &v1& must start
earlier than this task does.

System Response

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

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FCC1307 - Details

• The SAP error message FCC1307, which states "Cannot specify task &1 as a predecessor of this task," typically occurs in the context of project management or task scheduling within SAP, particularly in the Project System (PS) module. This error indicates that there is an issue with the task dependencies defined in your project.
  
  Cause:
  The error arises when you attempt to set a task as a predecessor for another task, but the system identifies that this relationship is not valid. Common reasons for this error include:
  
  Circular Dependency: You may be trying to create a circular dependency where Task A is a predecessor of Task B, and Task B is also a predecessor of Task A.
  Invalid Task Status: The task you are trying to set as a predecessor may not be in a valid status to be linked (e.g., it might be completed or not yet started).
  Task Type Restrictions: Certain task types may