How To Fix CN173 - Method & cannot be used without an object type

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 173

• Message text: Method & cannot be used without an object type

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN173 - Method & cannot be used without an object type ?

  The SAP error message CN173, which states "Method & cannot be used without an object type," typically occurs in the context of SAP's Project System (PS) or related modules when there is an attempt to call a method that requires a specific object type, but that object type is not defined or is missing.
  Cause:
  
  Missing Object Type: The method being called is associated with a specific object type (like a project, WBS element, or network) that has not been specified or is not available in the current context.
  Incorrect Configuration: The configuration for the method may not be set up correctly, leading to the system not recognizing the required object type.
  Programming Error: If this error arises from custom ABAP code, it may be due to a programming mistake where the object type is not being passed correctly to the method.
  
  Solution:
  
  Check Object Type: Ensure that the object type required by the method is correctly defined and available in the context where the method is being called. This may involve checking the project structure or the specific object you are working with.
  Review Method Call: If you are working with custom code, review the method call to ensure that the correct object type is being passed. Make sure that the object instance is properly initialized and that it corresponds to the expected type.
  Configuration Review: If the error is related to standard SAP functionality, check the configuration settings for the relevant module (like Project System) to ensure that all necessary object types and methods are properly defined.
  Debugging: If you have access to debugging tools, you can set breakpoints and step through the code to identify where the object type is not being set or passed correctly.
  Consult Documentation: Refer to SAP documentation or help resources for the specific method you are trying to use to understand its requirements and ensure you are meeting them.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, SAP releases notes that address specific bugs or provide guidance on resolving common issues.
  Community Forums: SAP Community and other forums can be valuable resources for finding similar issues faced by other users and the solutions they found.
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP that may help you navigate the Project System or related modules to check configurations and object types.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.