How To Fix CMES104 - Operation already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CMES - External Scheduling Interface CS-SDL

• Message number: 104

• Message text: Operation already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMES104 - Operation already exists ?

  The SAP error message CMES104 ("Operation already exists") typically occurs in the context of SAP's Project System (PS) or Production Planning (PP) modules when you attempt to create or modify an operation in a routing or a work breakdown structure (WBS) element that already has an operation with the same identifier or characteristics.
  Cause:
  
  Duplicate Operation: The most common cause is that you are trying to create an operation that already exists in the routing or WBS element.
  Incorrect Data Entry: There may be a mistake in the data entry, such as entering the same operation number or characteristics that already exist.
  System Configuration: In some cases, the system configuration or settings may allow for certain operations to be unique, leading to this error when duplicates are attempted.
  
  Solution:
  
  
  Check Existing Operations: Review the existing operations in the routing or WBS element to confirm if the operation you are trying to create already exists. You can do this by navigating to the relevant transaction (e.g., CA03 for routing) and checking the list of operations.
  
  
  Modify Existing Operation: If the operation already exists and you need to make changes, consider modifying the existing operation instead of creating a new one.
  
  
  Use Unique Identifiers: Ensure that any new operations you create have unique identifiers or characteristics that do not conflict with existing operations.
  
  
  Consult Documentation: If you are unsure about the operation identifiers or how to manage them, refer to SAP documentation or guidelines specific to your organization’s processes.
  
  
  Check for System Configuration: If you believe the error is due to system configuration, consult with your SAP Basis or technical team to review the settings related to operation management.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CA01 (Create Routing), CA02 (Change Routing), and CA03 (Display Routing) for managing operations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to create or modify operations in the system.
  Training and Documentation: Consider training sessions or documentation that cover the creation and management of operations in SAP to avoid similar issues in the future.
  
  If the problem persists after following these steps, it may be beneficial to reach out to your SAP support team for further assistance.