How To Fix ON003 - Function &1 has not yet been implemented

SAP Error Message - Details

• Message type: E = Error

• Message class: ON - Tools in area Object Modeler / Object Editor

• Message number: 003

• Message text: Function &1 has not yet been implemented

What causes this issue?

You want to execute a function that has not yet been implemented.
Therefore it cannot be executed.

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?

If necessary speak to the responsible developer.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ON003 - Function &1 has not yet been implemented ?

  The SAP error message ON003, which states "Function &1 has not yet been implemented," typically indicates that a specific function or feature you are trying to use in the SAP system has not been developed or activated in your current system version. This can occur in various contexts, such as when using certain transactions, reports, or custom developments.
  Causes:
  
  Missing Implementation: The function you are trying to access has not been implemented in your version of SAP. This could be due to the function being part of a newer release or enhancement package that your system has not yet applied.
  Custom Development: If you are using a custom program or enhancement, the function may not have been coded or activated properly.
  Configuration Issues: Certain functions may require specific configuration settings that have not been completed.
  Authorization Issues: Sometimes, the function may be implemented, but the user does not have the necessary authorizations to access it.
  
  Solutions:
  
  Check SAP Notes: Look for relevant SAP Notes that might address the specific function or error. SAP Notes often provide fixes or workarounds for known issues.
  Upgrade or Apply Support Packages: If the function is part of a newer version or enhancement package, consider upgrading your SAP system or applying the necessary support packages.
  Custom Development: If the function is part of a custom development, consult with your ABAP developers to ensure that the function is implemented correctly.
  Configuration Review: Review the configuration settings related to the function. Ensure that all necessary settings are completed.
  Authorization Check: Verify that the user has the appropriate authorizations to access the function. This may involve checking roles and permissions in the user profile.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module or function you are working with. This can provide insights into the expected behavior and requirements.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues. You can find discussions, solutions, and best practices.
  Transaction Codes: If applicable, check the transaction codes related to the function to see if there are alternative ways to achieve the desired outcome.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.