How To Fix SL203 - System log number must begin with a letter

SL203 - Overview

• Message type: E = Error

• Message class: SL - System log

• Message number: 203

• Message text: System log number must begin with a letter

What causes this issue?

Unpermitted data.

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?

The system log message ID is three characters long.
An uppercase letter A..Z
An uppercase letter A..Z or a number 0..9
An uppercase letter A..Z or a number 0..9

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SL203 - System log number must begin with a letter ?

  The SAP error message SL203, which states "System log number must begin with a letter," typically occurs when there is an issue with the format of the system log number being entered in the SAP system. This error is often encountered in transactions or processes where a log number is required, such as in the context of logging system events or errors.
  
  Cause:
  The primary cause of this error is that the system log number you are trying to enter does not conform to the expected format. Specifically, the log number must start with a letter (A-Z) followed by alphanumeric characters. If the log number starts with a digit or contains invalid characters, the system will reject it and display this error message.
  
  Solution:
  To resolve the SL203 error, follow these steps:
  
  
  Check the Log Number Format: Ensure that the log number you are entering starts with a letter. For example, valid log numbers could