How To Fix COOS028 - Choose a valid function

SAP Error Message - Details

• Message type: E = Error

• Message class: COOS - Order Split

• Message number: 028

• Message text: Choose a valid function

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 COOS028 - Choose a valid function ?

  The SAP error message COOS028 ("Choose a valid function") typically occurs in the context of the Controlling (CO) module, particularly when working with cost centers, internal orders, or other related functions. This error indicates that the system is expecting a valid function to be selected, but the input provided does not match any of the available options.
  Causes:
  
  Invalid Function Selection: The user may have selected a function that is not available for the current context or transaction.
  Authorization Issues: The user may not have the necessary authorizations to access certain functions.
  Configuration Issues: There may be a configuration problem in the system that is preventing the valid functions from being displayed or selected.
  Data Entry Errors: Mistakes in data entry, such as incorrect codes or values, can lead to this error.
  
  Solutions:
  
  Check Function Availability: Ensure that the function you are trying to select is valid for the current transaction. Refer to the documentation or help resources for the specific transaction you are using.
  Review Authorizations: Verify that you have the necessary authorizations to access the function. If not, contact your SAP security administrator to request the appropriate access.
  Consult Configuration Settings: If you suspect a configuration issue, consult with your SAP Basis or CO module configuration team to ensure that all necessary settings are correctly configured.
  Correct Data Entry: Double-check the data you have entered to ensure that it is correct and matches the expected format or values.
  Use Help Functionality: Utilize the F1 help functionality in SAP to get more information about the field or function you are trying to use. This can provide insights into valid options and usage.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with the relevant transaction codes in the CO module, such as KSB1 (Cost Centers: Actual Line Items) or KO03 (Display Internal Order).
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message COOS028. SAP Notes can provide specific guidance or fixes for known problems.
  User Manuals and Documentation: Refer to user manuals or online documentation for the specific SAP module you are working with to understand the context of the functions available.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team for further assistance.