How To Fix CY123 - Please enter a unique sort sequence

SAP Error Message - Details

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 123

• Message text: Please enter a unique sort sequence

What causes this issue?

On the options screen of the detailed capacity list, you can enter a
sort sequence for the orders (order, start date, finish date, delivery
date, priority). The sort sequence must be unique, that is, an item
in the sequence may only occur once.

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?

Please check the sort sequence you have entered.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CY123 - Please enter a unique sort sequence ?

  The SAP error message CY123: "Please enter a unique sort sequence" typically occurs in the context of creating or modifying a sort sequence in SAP, particularly in the areas of material management or logistics. This error indicates that the sort sequence you are trying to enter is not unique, meaning that there is already an existing sort sequence with the same identifier or criteria.
  Cause:
  
  Duplicate Entry: The most common cause of this error is that the sort sequence you are trying to create or modify already exists in the system.
  Incorrect Data Entry: There may be a mistake in the data entry, such as entering the same sort criteria or identifier as an existing one.
  Configuration Issues: In some cases, the configuration settings in the system may not allow for duplicate sort sequences.
  
  Solution:
  
  
  Check Existing Sort Sequences: Before creating a new sort sequence, check the existing sort sequences in the system to ensure that the one you are trying to create does not already exist. You can do this by navigating to the relevant transaction code (e.g., SE11 for Data Dictionary or SE16 for table display) and checking the relevant tables.
  
  
  Modify Existing Sort Sequence: If you find that the sort sequence already exists and you need to make changes, consider modifying the existing entry instead of creating a new one.
  
  
  Use a Unique Identifier: If you need to create a new sort sequence, ensure that you are using a unique identifier or criteria that does not conflict with existing entries.
  
  
  Consult Documentation: Refer to SAP documentation or help files for specific guidelines on creating sort sequences in your particular module.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE16 (Table Display), or specific transaction codes related to the module you are working in (e.g., MM for Material Management).
  SAP Notes: Check SAP Notes for any known issues or patches related to sort sequences that may provide additional context or solutions.
  User Roles and Permissions: Ensure that you have the necessary permissions to create or modify sort sequences in the system.
  
  By following these steps, you should be able to resolve the CY123 error and successfully manage sort sequences in SAP.