How To Fix CX245 - &1 cannot begin with "&2"

CX245 - Overview

• Message type: E = Error

• Message class: CX - Nachrichten für Konfigurationsprozess

• Message number: 245

• Message text: &1 cannot begin with "&2"

What causes this issue?

&v1& can only start with a letter.
In general, the only characters you can use are letters (A-Z), figures
(1-9) and underscore (_).

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?

Please enter a letter as the first character of the &v1&.

Error message extract from SAP system. Copyright SAP SE.

CX245 - Details

• The SAP error message CX245 typically indicates that there is an issue with the naming convention of a certain object or identifier in the SAP system. The message format is usually as follows:
  CX245 &1 cannot begin with "&2"
  
  Cause:
  The error occurs when an object (like a variable, function, or identifier) is being defined or referenced in a way that does not comply with the naming rules set by SAP. Specifically, it suggests that the name of the object (represented by &1) is starting with an invalid character (represented by &2). In SAP, certain characters are not allowed at the beginning of identifiers, such as numbers or special characters.
  
  Solution:
  To resolve this error, you should:
  
  
  Check the Naming Convention: Ensure that the name of the object you are trying to create or reference starts with a valid character. In SAP ABAP, for example, identifiers should start with a letter (A-Z) or an underscore (_).
  
  
  Rename