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

CO755 - Overview

• 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.

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 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,