How To Fix CP303 - The reference sequence is not defined (please define)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 303

• Message text: The reference sequence is not defined (please define)

What causes this issue?

You want to use a reference sequence that does not exist.

How to fix this error?

Reference an existing sequence
<ZH>or</>
enter operations for a new sequence which you can reference.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CP303 - The reference sequence is not defined (please define) ?

  The SAP error message CP303, "The reference sequence is not defined (please define)," typically occurs in the context of production planning and control, particularly when working with routing or production orders. This error indicates that the system is unable to find a defined reference sequence for the operation you are trying to execute.
  
  Cause:
  
  Missing Reference Sequence: The most common cause of this error is that the reference sequence (which is used to define the order of operations in a routing) has not been created or is not assigned to the material or production order you are working with.
  Incorrect Configuration: There may be a configuration issue where the reference sequence is not properly linked to the relevant production process or material.
  Data Inconsistency: There could be inconsistencies in the master data, such as the material master or routing data, which prevent the system from finding the reference sequence.
  
  
  Solution:
  
  
  Define the Reference Sequence:
  
  Go to the