How To Fix CO755 - Control key & is not defined (check entry)

SAP Error Message - Details

• Message type: E = Error

• Message class: CO - PPC order processing messages

• Message number: 755

• Message text: Control key & is not defined (check entry)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CO755 - Control key & is not defined (check entry) ?

  The SAP error message CO755 indicates that a control key specified in a transaction or configuration is not defined in the system. Control keys are used in various SAP modules, particularly in Controlling (CO) and Production Planning (PP), to determine how operations are processed and managed.
  Cause:
  
  Undefined Control Key: The control key you are trying to use has not been defined in the system.
  Typographical Error: There may be a typo in the control key entered in the transaction.
  Missing Configuration: The control key may not have been configured properly in the system.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain control keys.
  
  Solution:
  
  
  Check Control Key Definition:
  
  Go to the transaction code OPKP (for controlling) or OPL8 (for production) to check if the control key exists.
  If it does not exist, you will need to create it using the appropriate configuration settings.
  
  
  
  Create or Modify Control Key:
  
  If the control key is missing, you can create it by navigating to the relevant configuration area in SPRO:
  
  SPRO > Controlling > Product Cost Controlling > Cost Object Controlling > Define Control Keys.
  
  
  Ensure that all necessary fields are filled out correctly.
  
  
  
  Verify Input:
  
  Double-check the input for any typographical errors. Ensure that the control key is entered correctly in the transaction.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access and use the control key. This can be checked with your SAP security team.
  
  
  
  Consult Documentation:
  
  Review any relevant documentation or guidelines for your specific SAP implementation to ensure that you are using the correct control key.
  
  
  
  Related Information:
  
  Control Keys: Control keys are essential for defining how operations are executed in production and controlling processes. They determine aspects like whether an operation is relevant for costing, whether it can be confirmed, and how it interacts with other processes.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO01 (Create Production Order), CO02 (Change Production Order), and CO03 (Display Production Order) to see where the control key is being used.
  SAP Notes: Check SAP Notes for any known issues or updates related to control keys and error CO755.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP's official documentation for further assistance.