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

C0305 - Overview

• 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.