How To Fix RJ028 - Error &1 in function module &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RJ - BW Extractor Handling Message Class

• Message number: 028

• Message text: Error &1 in function module &2

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?

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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 RJ028 - Error &1 in function module &2 ?

  The SAP error message RJ028 typically indicates an issue related to the processing of a function module, where the system is unable to execute a specific function due to various reasons. The error message format usually includes placeholders for specific details, such as the error code (&1) and the function module name (&2).
  Possible Causes:
  
  Data Issues: The input data being processed may be incorrect or incomplete, leading to the function module failing to execute properly.
  Configuration Problems: There may be configuration issues in the system that prevent the function module from functioning as intended.
  Authorization Issues: The user executing the function may not have the necessary authorizations to perform the action.
  System Bugs: There could be bugs or issues in the specific version of the SAP system you are using.
  Missing Dependencies: The function module may rely on other components or modules that are not available or not properly configured.
  
  Solutions:
  
  Check Input Data: Review the data being passed to the function module to ensure it is complete and correct.
  Review Configuration: Check the configuration settings related to the function module to ensure they are set up correctly.
  Authorization Check: Verify that the user has the necessary authorizations to execute the function module.
  Debugging: Use the SAP debugger to step through the function module to identify where the error occurs.
  Consult SAP Notes: Look for relevant SAP Notes that may address known issues with the function module or error RJ028.
  System Update: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve bugs related to the error.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific function module to understand its requirements and limitations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  Transaction Codes: Use transaction codes like SE37 (Function Module) or SE80 (Object Navigator) to analyze the function module in question.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis or development team for further investigation.