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

WW405 - Overview

• 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