How To Fix WW405 - Class type & cannot be processed using this transaction

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 405

• Message text: Class type & cannot be processed using this transaction

What causes this issue?

During reclassification, special checks must run for this SAP-internal
class type. That is why this class type has its own special
transactions.

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?

Use the reclassification transactions. To do this, choose the menu path
<DS:TRAN.WRC4>Material group/Hierarchy assignment/Reclassification</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WW405 - Class type & cannot be processed using this transaction ?

  The SAP error message WW405 indicates that a specific class type cannot be processed using the transaction you are trying to execute. This typically occurs in the context of working with classification in SAP, where certain class types are restricted to specific transactions or processes.
  Cause:
  
  Class Type Restrictions: The class type you are trying to use is not allowed for the transaction you are executing. Each class type in SAP can have specific settings that determine which transactions can interact with it.
  Configuration Issues: There may be configuration settings in the classification system that restrict the use of certain class types in specific transactions.
  Authorization Issues: The user may not have the necessary authorizations to process the class type in question.
  
  Solution:
  
  
  Check Class Type Configuration:
  
  Go to the transaction code CL02 (Change Class) or CL03 (Display Class) to check the configuration of the class type.
  Verify if the class type is set up correctly and if it is allowed for the transaction you are trying to use.
  
  
  
  Review Transaction Settings:
  
  Ensure that the transaction you are using is compatible with the class type. Some transactions are designed to work only with specific class types.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to perform actions related to the class type. This can be checked in transaction SU53 after the error occurs, or by reviewing the user's roles and authorizations.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to classification and the specific transaction you are using to understand any limitations or requirements.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), and CL03 (Display Class) for managing class types.
  Classification System: Understand the classification system in SAP, including how class types are defined and used in various business processes.
  SAP Notes: Check for any SAP Notes related to the error message WW405, as there may be specific patches or updates that address known issues.
  
  By following these steps, you should be able to diagnose and resolve the WW405 error in SAP.