How To Fix CP304 - The sequence is already defined

CP304 - Overview

• Message type: E = Error

• Message class: CP - Task list messages: Core data

• Message number: 304

• Message text: The sequence is already defined

What causes this issue?

A sequence with the specified sequence key already exists.

How to fix this error?

Select a new key for the sequence you want to
create.

Error message extract from SAP system. Copyright SAP SE.

CP304 - Details

• The SAP error message CP304, which states "The sequence is already defined," typically occurs in the context of SAP's Production Planning (PP) or Controlling (CO) modules, particularly when dealing with routing or production sequences. This error indicates that there is an attempt to define a sequence that has already been established in the system.
  
  Cause:
  
  
  Duplicate Sequence Definition: The most common cause of this error is that the sequence you are trying to create or modify already exists in the system. This can happen if:
  
  You are trying to create a new sequence with the same identifier as an existing one.
  You are attempting to assign a sequence to a routing or production order that has already been assigned.
  
  
  
  Incorrect Data Entry: Sometimes, the error can arise from incorrect data entry or configuration settings that lead to the system recognizing a sequence as already defined.
  
  
  
  Solution:
  
  
  Check Existing Sequences: 
  
  Navigate to the relevant transaction (e.g., CA03 for