How To Fix CACSOA171 - Not all functions defined in application plug '&1' exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CACSOA - FOA: Messages Related to Object Assignments

• Message number: 171

• Message text: Not all functions defined in application plug '&1' exist

What causes this issue?

While attempting to create a <DS:TX.CACS_OAWL>worklist for object
assignment</>, the system has detected an error. At least one of the
function modules that implement the <DS:DE.CACSOAPLUGMETH>methods</> of
the <DS:DE.CACSOAPLUG>application plug</> does not exist in the system.

System Response

You cannot continue processing under these circumstances. Processing is
terminated.

How to fix this error?

Check the application plug for the <DS:TX.CACS_OATY>assignment type</>
of the <DS:TX.CACS_OAWLD>definition for worklist</> for which you wish
to create a worklist.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CACSOA171 - Not all functions defined in application plug '&1' exist ?

  The SAP error message CACSOA171 indicates that not all functions defined in the application plug (specified by &1) exist. This typically occurs in the context of SAP's Composite Application Framework (CAF) or when working with Web Dynpro applications, where application plugs are used to define the interface between different components.
  Cause:
  
  Missing Function Definitions: The error usually arises when the application plug is defined with certain functions that are not implemented or are missing in the corresponding component.
  Inconsistent Configuration: There may be inconsistencies in the configuration of the application plug, such as changes made to the plug without updating the corresponding implementation.
  Transport Issues: If the application plug was transported from one system to another, it’s possible that the transport did not include all necessary components or functions.
  Development Errors: Errors during the development phase, such as incomplete coding or incorrect references, can lead to this issue.
  
  Solution:
  
  Check Function Definitions: Verify that all functions defined in the application plug are implemented in the corresponding component. You can do this by checking the configuration of the application plug in the SAP system.
  Update Application Plug: If there are changes in the functions, update the application plug to reflect the current state of the implementation.
  Rebuild the Component: If you suspect that the component is not correctly built, try rebuilding it to ensure that all functions are correctly recognized.
  Transport Check: If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included and transported correctly.
  Debugging: Use debugging tools to trace the execution and identify where the missing function is being called. This can help pinpoint the exact cause of the error.
  Consult Documentation: Review the SAP documentation related to the Composite Application Framework or the specific technology you are using to ensure that you are following best practices.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on application plugs and their configuration.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.