How To Fix S&519 - BAPI &1: Key field &2 of class method must not be an import parameter

SAP Error Message - Details

• Message type: E = Error

• Message class: S& -

• Message number: 519

• Message text: BAPI &1: Key field &2 of class method must not be an import parameter

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 S&519 - BAPI &1: Key field &2 of class method must not be an import parameter ?

  The SAP error message S&519 indicates that there is an issue with the BAPI (Business Application Programming Interface) you are trying to use. Specifically, the error message states that a key field of a class method is being passed as an import parameter, which is not allowed.
  Cause:
  In SAP, BAPIs are designed to interact with business objects and typically have specific rules regarding how parameters are defined. Key fields are essential identifiers for business objects, and they should not be passed as import parameters in the context of a class method. Instead, they should be part of the object instance or passed in a different manner.
  Solution:
  To resolve this error, you should:
  
  
  Review the BAPI Definition: Check the BAPI documentation to understand the expected parameters. Ensure that key fields are not being passed as import parameters.
  
  
  Modify the Method Call: If you are calling a method of a class, ensure that the key fields are being set correctly. Instead of passing them as import parameters, you may need to set them on the object instance or use them in a different way.
  
  
  Check the Implementation: If you are developing or modifying the BAPI, ensure that the key fields are defined correctly in the method signature. They should be defined as part of the object instance or as part of the key structure, not as import parameters.
  
  
  Consult SAP Notes: Sometimes, specific issues may be documented in SAP Notes. Check the SAP Support Portal for any relevant notes that might address this error.
  
  
  Testing: After making the necessary changes, test the BAPI call again to ensure that the error is resolved.
  
  
  Related Information:
  
  BAPI Documentation: Familiarize yourself with the BAPI documentation for the specific BAPI you are using. This will provide insights into the expected parameters and their usage.
  SAP Community: Engage with the SAP Community forums or consult with colleagues who may have encountered similar issues.
  Debugging: If you have access to the ABAP debugger, you can step through the code to see how parameters are being passed and identify where the issue arises.
  
  By following these steps, you should be able to resolve the S&519 error and successfully use the BAPI in your SAP environment.