How To Fix CA301 - You cannot exit BDCDATA using FCode "bu"

SAP Error Message - Details

• Message type: E = Error

• Message class: CA - CIM messages: ABAP reporting

• Message number: 301

• Message text: You cannot exit BDCDATA using FCode "bu"

What causes this issue?

Internal error. The object cannot be replaced.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

INCLUDE NA_SYSAD1

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CA301 - You cannot exit BDCDATA using FCode "bu" ?

  The SAP error message CA301, which states "You cannot exit BDCDATA using FCode 'bu'," typically occurs in the context of using the SAP GUI or when working with batch input sessions. This error is related to the handling of the BDCDATA table, which is used for batch input processing in SAP.
  Cause:
  The error is caused when there is an attempt to exit a screen or transaction using a function code (FCode) that is not allowed in the current context. Specifically, the FCode "bu" is not recognized as a valid exit code for the BDCDATA processing. This can happen if:
  
  The batch input session is not properly configured.
  There is an attempt to use a function code that is not supported in the current screen or transaction.
  The program or script that is executing the batch input is incorrectly coded.
  
  Solution:
  To resolve the CA301 error, you can try the following steps:
  
  
  Check the Function Code: Ensure that the function code you are trying to use is valid for the current screen. You may need to refer to the SAP documentation or consult with a functional consultant to verify the correct function codes.
  
  
  Review Batch Input Session: If you are working with a batch input session, check the session for any errors or inconsistencies. You can do this by going to transaction SM35 and reviewing the session logs.
  
  
  Modify the Batch Input Program: If you are using a custom program or script to process the batch input, review the code to ensure that it is correctly handling the BDCDATA table and not attempting to exit using unsupported function codes.
  
  
  Use Correct Exit Codes: Instead of using "bu", use the appropriate exit codes that are valid for the transaction you are working with. Common exit codes include "BACK", "EXIT", or "CANCEL", depending on the context.
  
  
  Debugging: If you have access to debugging tools, you can set breakpoints in the program to see where the error is being triggered and analyze the flow of the program.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  Related Information:
  
  BDCDATA Table: This table is used in batch input processing to hold the data that is to be processed in a batch input session.
  Function Codes: Function codes are used in SAP to trigger specific actions or navigate between screens. Each screen in SAP has its own set of valid function codes.
  Batch Input Sessions: These are used to automate data entry in SAP by processing data in bulk rather than manually entering it.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.