How To Fix C0305 - - Assign required characteristic &2 to message category &1

SAP Error Message - Details

• Message type: E = Error

• Message class: C0 - PP-PI: Messages for PI Sheet and Syntax Checker

• Message number: 305

• Message text: - Assign required characteristic &2 to message category &1

What causes this issue?

In the process instruction, message category &V1& has been assigned to
characteristic &V4&. This means that a message of message category
&V1& is requested. The required characteristic &V2& of this message
category is not included in the process instruction.
However, a process instruction must contain all required
characteristics of the requested message category.

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?

Assign characteristic &V2& to the process instruction after
characteristic &V4&.
INCLUDE NA_INST_MESSCHAR OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C0305 - - Assign required characteristic &2 to message category &1 ?

  The SAP error message C0305 indicates that a required characteristic is not assigned to a specific message category. This error typically arises in the context of SAP's configuration for message handling, particularly in areas like Quality Management (QM) or other modules that utilize message categories and characteristics.
  Cause:
  The error occurs when:
  
  A message category (e.g., for notifications, alerts, etc.) is configured to require certain characteristics, but those characteristics have not been assigned.
  The system is trying to process a message that requires specific characteristics that are missing from the configuration.
  
  Solution:
  To resolve the C0305 error, you can follow these steps:
  
  
  Identify the Message Category and Characteristic:
  
  The error message will specify the message category (&1) and the required characteristic (&2). Take note of these values.
  
  
  
  Access the Configuration:
  
  Go to the relevant configuration area in SAP. This is usually found in the SPRO transaction (SAP Project Reference Object).
  Navigate to the section related to the message categories and characteristics. This could be under Quality Management or another relevant module.
  
  
  
  Assign the Required Characteristic:
  
  Locate the message category in question.
  Check the list of assigned characteristics and see if the required characteristic is missing.
  If it is missing, assign the required characteristic to the message category.
  
  
  
  Save the Configuration:
  
  After making the necessary changes, save your configuration.
  
  
  
  Test the Changes:
  
  Try to reproduce the scenario that caused the error to ensure that the issue has been resolved.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO for configuration, QM01 for creating quality notifications, or others depending on your specific use case.
  Documentation: Refer to SAP Help documentation for detailed guidance on message categories and characteristics.
  Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error.
  
  By following these steps, you should be able to resolve the C0305 error and ensure that the required characteristics are properly assigned to the relevant message categories in your SAP system.