How To Fix BL203 - Message incomplete (severity, area, number, or exception missing)

BL203 - Overview

• Message type: E = Error

• Message class: BL - Application Log

• Message number: 203

• Message text: Message incomplete (severity, area, number, or exception missing)

What causes this issue?

An incomplete message was sent to the application log.
A message comprises at least:
<DS:DE.BALMSGTY>Error severity</> (MSGTY field)
<DS:DE.SYMSGID>Work area</> (MSGID field)
<DS:DE.SYMSGNO>Error number</> (MSGNO field)
At least one of these values is missing.
At least the exception class (I_S_EXC exception) must be transferred for
exceptions.

System Response

How to fix this error?

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

BL203 - Details

• The SAP error message BL203 ("Message incomplete (severity, area, number, or exception missing)") typically occurs when there is an issue with the configuration or setup of message handling in the SAP system. This error indicates that a message that is supposed to be generated is missing critical components, such as severity, area, number, or exception.
  Causes:
  
  Incomplete Message Configuration: The message might not be fully defined in the system. This can happen if the message class or message number is not properly set up.
  Custom Development Issues: If there are custom programs or enhancements that generate messages, they may not be correctly implemented, leading to incomplete messages.
  Transport Issues: If messages were transported from one system to another (e.g., from development to production), there might have been issues during the transport process that resulted in missing message definitions.
  System Bugs: Occasionally, bugs in the SAP system or specific patches may lead to this error.
  
  Solutions:
  
  
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