How To Fix KG028 - Function cannot be executed (internal program error)

SAP Error Message - Details

• Message type: E = Error

• Message class: KG - CO-PA Planning

• Message number: 028

• Message text: Function cannot be executed (internal program error)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message KG028 - Function cannot be executed (internal program error) ?

  The SAP error message KG028, which states "Function cannot be executed (internal program error)," typically indicates that there is an issue within the SAP system that is preventing a specific function from being executed. This error can arise from various underlying causes, and resolving it may require different approaches depending on the context in which it occurs.
  Possible Causes:
  
  System Bugs: There may be a bug in the SAP program or transaction you are trying to execute.
  Configuration Issues: Incorrect configuration settings in the system can lead to this error.
  Data Inconsistencies: Inconsistent or corrupted data in the database can trigger internal errors.
  Authorization Issues: Lack of proper authorizations for the user executing the function can also lead to this error.
  Missing or Incomplete Updates: If the system has not been updated properly, it may lead to internal errors.
  
  Solutions:
  
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal. SAP frequently releases notes that address known issues and bugs.
  Transaction Codes: Use transaction codes like ST22 (Dump Analysis) or SLG1 (Application Log) to analyze the error further. This can provide more context about the internal error.
  Data Consistency Check: Run consistency checks on the relevant data to ensure there are no corrupt entries.
  User Authorizations: Verify that the user has the necessary authorizations to execute the function.
  System Updates: Ensure that your SAP system is up to date with the latest patches and updates.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with the error details and any relevant logs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes that can help diagnose issues, such as SE80 (Object Navigator) and SE37 (Function Module).
  Debugging: If you have access, you can debug the function module to identify where the error occurs.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  Conclusion:
  The KG028 error can be frustrating, but by systematically checking the possible causes and applying the suggested solutions, you can often resolve the issue. If all else fails, engaging with SAP Support is a reliable way to get to the bottom of the problem.