How To Fix CJ012 - Finish date must be earlier than "&"

CJ012 - Overview

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 012

• Message text: Finish date must be earlier than "&"

What causes this issue?

You have entered a date that is not within the scheduling horizon.

System Response

INCLUDE NA_ALLG_NOFUNKTION OBJECT DOKU ID TX

How to fix this error?

Check the finish date.

Error message extract from SAP system. Copyright SAP SE.

CJ012 - Details

• The SAP error message CJ012 indicates that there is an issue with the scheduling of a project or a network activity in the Project System (PS) module. Specifically, the error states that the finish date of a project or activity must be earlier than a specified date (represented by "&"). This typically occurs when the finish date of a task or project is set to a date that is later than the start date of a subsequent task or project, leading to a scheduling conflict.
  
  Cause:
  
  Incorrect Date Entry: The finish date for a project or activity has been entered incorrectly, making it later than the start date of a dependent task.
  Dependencies: There are dependencies between tasks that require the finish date of one task to be earlier than the start date of another.
  Project Structure Changes: Changes in the project structure or scheduling parameters may have led to inconsistencies in the dates.
  System