How To Fix SAP_GUIDELINES129 - Declaration of instance attribute: (&1) violates naming convention

SAP_GUIDELINES129 - Overview

• Message type: E = Error

• Message class: SAP_GUIDELINES - SAP ONLY: Check internal guidelines

• Message number: 129

• Message text: Declaration of instance attribute: (&1) violates naming convention

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAP_GUIDELINES129 - Declaration of instance attribute: (&1) violates naming convention ?

  The SAP error message SAP_GUIDELINES129 indicates that there is a violation of naming conventions for an instance attribute in your ABAP code. This error typically arises when the name of an instance attribute does not conform to the established naming conventions set by SAP.
  
  Cause:
  The error is triggered when:
  
  The name of the instance attribute does not start with a letter (A-Z or a-z).
  The name contains invalid characters (e.g., spaces, special characters).
  The name is too long or too short, violating the defined length constraints.
  The name is not in the expected format (e.g., camelCase, underscores).
  
  
  Solution:
  To resolve this error, you should:
  
  
  Check the Naming Convention: Ensure that the instance attribute name follows the SAP naming conventions. Typically, instance attributes should:
  
  Start with a letter.
  Use only alphanumeric characters and underscores.
  Be meaningful and descriptive.
  Follow the length restrictions (usually up to 30 characters).
  
  
  
  Rename the Attribute: If the attribute name violates any of the above rules, rename it to a