How To Fix W4023 - &: & run schedule header exists

W4023 - Overview

• Message type: E = Error

• Message class: W4 - Messages for material discontinuation

• Message number: 023

• Message text: &: & run schedule header exists

What causes this issue?

A run schedule header still exists for the material.

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?

Delete the run schedule header for the material.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W4023 - &: & run schedule header exists ?

  SAP Error Message:
  W4023 & : & run schedule header exists
  
  Meaning / 
  Cause:
  This warning message indicates that a run schedule header already exists for the given parameters (such as job name, variant, or other scheduling criteria). In other words, when you try to create or schedule a new run schedule (often related to batch jobs, report executions, or background processing), the system detects that a run schedule header with the same key or identifier is already present in the system.
  This situation typically arises when:
  
  You attempt to create a duplicate run schedule for the same job or report.
  A previous run schedule was not deleted or properly closed.
  There is an overlap or conflict in scheduling parameters.
  
  
  Where it occurs:
  
  In transaction codes related to job scheduling or report execution (e.g., SM36, SM37, or custom scheduling transactions).
  When using batch input sessions or custom programs that manage run schedules.
  In scenarios involving background job scheduling or report variants.
  
  
  Solution