How To Fix C1666 - Obsolete function module & called

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 666

• Message text: Obsolete function module & called

What causes this issue?

You called a function module that is not released because it is no
longer used or supported.

System Response

This triggered a short dump.

How to fix this error?

Contact your system administrator or inform SAP AG.
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The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1666 - Obsolete function module & called ?

  The SAP error message C1666 indicates that a function module being called in your ABAP program is obsolete. This typically means that the function module is no longer recommended for use, possibly due to it being replaced by a newer function module or method that provides the same or enhanced functionality.
  Cause:
  
  Obsolescence: The function module has been marked as obsolete by SAP, which usually happens when there are better alternatives available.
  Legacy Code: The codebase may be using older function modules that have not been updated to reflect current best practices.
  SAP Version: The error may arise due to the version of SAP you are using, as newer versions may deprecate older function modules.
  
  Solution:
  
  Identify the Function Module: Check the specific function module that is causing the error. You can find this in the error message details.
  Find Alternatives: Look for the recommended alternative function module or method. This can often be found in the SAP documentation or by searching for the obsolete function module in the SAP Help Portal.
  Update Code: Modify your ABAP code to replace the obsolete function module with the recommended alternative. This may involve changing the parameters or the way the function is called.
  Testing: After making changes, thoroughly test the updated code to ensure that it functions as expected and does not introduce new issues.
  Consult SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to the obsolete function module.
  
  Related Information:
  
  SAP Documentation: Always refer to the official SAP documentation for the most accurate and up-to-date information regarding function modules and their alternatives.
  SAP Community: Engage with the SAP Community forums where you can find discussions and solutions related to similar issues.
  Code Review: Regularly review and refactor your codebase to replace obsolete function modules and ensure compliance with current SAP standards.
  
  By addressing the use of obsolete function modules, you can improve the maintainability and performance of your SAP applications.