How To Fix FMCY300 - *--- 301 to 399 reserved for copy handler (generic and FM part) ---*

SAP Error Message - Details

• Message type: E = Error

• Message class: FMCY - Copy budget data

• Message number: 300

• Message text: *--- 301 to 399 reserved for copy handler (generic and FM part) ---*

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FMCY300 - *--- 301 to 399 reserved for copy handler (generic and FM part) ---* ?

  The SAP error message FMCY300, which indicates that the message numbers from 301 to 399 are reserved for the copy handler (generic and function module part), typically arises in the context of function module or program execution where a specific error handling mechanism is expected.
  Cause:
  
  Reserved Message Numbers: The error message is triggered because the system is trying to use a message number that is reserved for internal SAP processes, specifically for the copy handler. This means that the function module or program is attempting to access or generate a message that is not available for user-defined or custom messages.
  Incorrect Message Handling: If a custom function module or program is trying to raise an error or warning using a message number in the reserved range, it will lead to this error.
  
  Solution:
  
  Check Message Numbers: Review the code in the function module or program to ensure that it is not using any message numbers in the range of 301 to 399. Instead, use message numbers that are defined for your application or custom messages.
  Use Custom Message Classes: If you need to define custom messages, create a new message class and use message numbers that are outside the reserved range. Typically, user-defined messages start from 000 and go up to 999, but you should check the specific ranges available in your system.
  Error Handling Logic: Ensure that the error handling logic in your function module or program is correctly implemented. If you are trying to handle errors, use appropriate message classes and numbers that are not reserved.
  Debugging: If you are unsure where the error is being triggered, use the debugger to trace the execution of the function module or program to identify the exact point where the reserved message number is being called.
  
  Related Information:
  
  Message Classes: In SAP, messages are organized into message classes. Each message class can contain multiple messages, and it is essential to manage these correctly to avoid conflicts with reserved message numbers.
  SAP Documentation: Refer to SAP documentation for guidelines on creating and managing message classes and numbers. This can provide insights into best practices for error handling in ABAP programs.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to message handling or provide updates on reserved message numbers.
  
  By following these steps, you should be able to resolve the FMCY300 error and ensure that your function module or program handles messages correctly without conflicting with reserved numbers.