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 transaction code C202 (or the relevant transaction for defining reference sequences).
  Check if the reference sequence you need is defined. If not, create a new reference sequence and ensure it is correctly configured.
  
  
  
  Assign the Reference Sequence:
  
  Ensure that the reference sequence is assigned to the relevant routing or production order. You can do this in the routing or production order configuration.
  Use transaction code CA01 (Create Routing) or CA02 (Change Routing) to check the routing details and ensure the reference sequence is included.
  
  
  
  Check Material Master:
  
  Verify that the material master data is correctly set up. Use transaction code MM03 to view the material master and ensure that all relevant views (especially the Work Scheduling view) are correctly filled out.
  
  
  
  Review Configuration Settings:
  
  If you have access to configuration settings, check the settings in the Production Planning (PP) module to ensure that everything is set up correctly for the reference sequences.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help files for more detailed instructions on how to define and manage reference sequences.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  C202: Define Reference Sequence
  CA01: Create Routing
  CA02: Change Routing
  MM03: Display Material Master
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for CP303 in the SAP Support Portal.
  
  
  User Roles: Ensure that you have the necessary authorizations to create or modify reference sequences and routing data.
  
  
  By following these steps, you should be able to resolve the CP303 error and ensure that your production planning processes run smoothly. If the issue persists, consider reaching out to your SAP support team for further assistance.