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

SAP Error Message - Details

• 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 valid name. For example:
  
  Change 1stAttribute to first_attribute.
  Change my-attribute to my_attribute.
  
  
  
  Review the Code: After renaming, review the code to ensure that all references to the renamed attribute are updated accordingly.
  
  
  Check for Consistency: Ensure that the naming convention is consistent across your codebase to avoid similar issues in the future.
  
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for various objects (e.g., classes, methods, attributes) to avoid similar errors.
  ABAP Documentation: Refer to the official ABAP documentation for guidelines on naming conventions and best practices.
  Code Review: Implement a code review process to catch naming convention violations before they lead to errors during compilation or runtime.
  
  By following these steps, you should be able to resolve the SAP_GUIDELINES129 error and ensure that your code adheres to SAP's naming conventions.