How To Fix EG417 - The combination of function and construction class is not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: EG - IS-U device management

• Message number: 417

• Message text: The combination of function and construction class is not permitted

What causes this issue?

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

System Response

How to fix this error?

Check your entries.
If you do not specify <DS:GLOS.function_class>function class</>, the
function class of the <DS:GLOS.construction_class>construction
classe</> is automatically used.
Contact your system administrator if this message appears again.
&sys_admin&
Specify a valid combination.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EG417 - The combination of function and construction class is not permitted ?

  The SAP error message EG417, which states "The combination of function and construction class is not permitted," typically occurs in the context of SAP's Project System (PS) or when dealing with certain functionalities in the SAP system that involve the assignment of functions to construction classes.
  Cause:
  This error usually arises due to one of the following reasons:
  
  
  Incompatible Function and Construction Class: The function you are trying to assign to a construction class is not allowed. Each construction class is designed to work with specific functions, and if there is a mismatch, this error will occur.
  
  
  Configuration Issues: There may be a configuration issue in the system where the allowed combinations of functions and construction classes have not been properly defined.
  
  
  Data Entry Errors: Sometimes, the error can be triggered by incorrect data entry, such as selecting the wrong function or construction class.
  
  
  Solution:
  To resolve the EG417 error, you can take the following steps:
  
  
  Check Function and Construction Class Combinations:
  
  Review the documentation or configuration settings to ensure that the function you are trying to use is compatible with the selected construction class.
  You may need to consult with your SAP configuration team or refer to the SAP help documentation for the specific combinations that are allowed.
  
  
  
  Adjust Configuration:
  
  If you have the necessary permissions, you can adjust the configuration settings in the SAP system to allow the desired combination. This typically involves navigating to the relevant configuration area in SPRO (SAP Project Reference Object) and modifying the settings.
  
  
  
  Correct Data Entry:
  
  Double-check the entries you have made. Ensure that you have selected the correct function and construction class that are compatible with each other.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve known issues related to this error message.
  
  
  
  Testing:
  
  After making any changes, perform tests to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CJ20N (Project Builder) or CJ02 (Change Project) to access the project details where the error is occurring.
  SAP Documentation: Refer to the SAP Help Portal for detailed documentation on Project System functionalities and configuration.
  User Forums: Consider checking SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  If the problem persists after following these steps, it may be beneficial to engage with SAP support for further assistance.