How To Fix RS504 - Transport not possible. Function module "&1" does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: RS - BRST Reporting Support Tools: Communication Handler

• Message number: 504

• Message text: Transport not possible. Function module "&1" does not exist

What causes this issue?

Function module &V1& does not exist or it is not active. This function
module is required to determine whether the reports can be transported.
This is why no transport is possible.

System Response

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?

Check the function module &V1&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS504 - Transport not possible. Function module "&1" does not exist ?

  The SAP error message RS504, which states "Transport not possible. Function module '&1' does not exist," typically occurs when you are trying to transport a function module that is either missing or has not been properly defined in the system. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Function Module: The function module you are trying to transport does not exist in the source system or the target system.
  Incorrect Naming: There might be a typo or incorrect naming in the function module name.
  Transport Directory Issues: There could be issues with the transport directory or transport request.
  Authorization Issues: The user may not have the necessary authorizations to access or transport the function module.
  Development Class Issues: The function module might not be assigned to a proper development class that allows it to be transported.
  
  Solutions:
  
  Check Existence: Verify that the function module actually exists in the source system. You can do this by navigating to the function module in transaction SE37 (Function Builder).
  Correct Naming: Ensure that the function module name is correctly specified in the transport request.
  Transport Request: If the function module is missing, you may need to create it again or ensure it is included in the correct transport request.
  Check Transport Directory: Ensure that the transport directory is correctly set up and that there are no issues with the transport management system.
  Authorization Check: Make sure that the user has the necessary authorizations to transport objects. You can check this in transaction SU53 after the error occurs.
  Development Class: Ensure that the function module is assigned to a development class that is transportable. You can check this in the attributes of the function module in SE37.
  Transport Logs: Review the transport logs for any additional error messages or warnings that might provide more context about the issue.
  
  Related Information:
  
  
  Transaction Codes:
  
  SE37: Function Builder - to check the existence and details of the function module.
  SE09/SE10: Transport Organizer - to manage transport requests.
  SU53: Authorization Check - to analyze authorization issues.
  
  
  
  SAP Notes: Check SAP Notes related to transport issues or specific error messages for additional guidance or patches.
  
  
  Documentation: Refer to SAP Help documentation for more details on transport management and function modules.
  
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.