How To Fix D2018 - Start: Uppercase to camel case

SAP Error Message - Details

• Message type: E = Error

• Message class: D2 - ABAP/4 Dictionary Tools

• Message number: 018

• Message text: Start: Uppercase to camel case

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message D2018 - Start: Uppercase to camel case ?

  The SAP error message D2018, which indicates "Start: Uppercase to camel case," typically arises in the context of ABAP programming when there is a naming convention issue. This error is related to the way identifiers (like variable names, class names, method names, etc.) are formatted in your code.
  Cause:
  The error occurs when the naming convention for identifiers does not adhere to the expected format. In ABAP, identifiers should follow specific naming conventions, and this error suggests that an identifier is expected to start with an uppercase letter but is not formatted correctly. The "camel case" refers to the practice of writing identifiers where the first letter of each word is capitalized, and there are no spaces or underscores.
  Solution:
  To resolve the D2018 error, you should:
  
  
  Check Identifier Naming: Review the identifiers in your code that are causing the error. Ensure that they start with an uppercase letter and follow the camel case convention.
  
  
  Rename Identifiers: If you find any identifiers that do not conform to the naming convention, rename them to follow the proper format. For example:
  
  Change my_variable to MyVariable
  Change calculate_total to CalculateTotal
  
  
  
  Use ABAP Naming Conventions: Familiarize yourself with the ABAP naming conventions to avoid similar issues in the future. Generally, class names should start with an uppercase letter, and methods should also follow the camel case format.
  
  
  Check for Typos: Sometimes, the error can be due to simple typos. Double-check your code for any misspellings or incorrect casing.
  
  
  Use Code Inspector: Utilize the ABAP Code Inspector (SCI) to analyze your code for naming convention violations and other potential issues.
  
  
  Related Information:
  
  ABAP Naming Conventions: Understanding the naming conventions in ABAP is crucial for writing clean and maintainable code. SAP provides guidelines on how to name variables, classes, methods, and other identifiers.
  Code Quality Tools: Tools like the ABAP Test Cockpit (ATC) can help you enforce coding standards and identify issues related to naming conventions and other best practices.
  Documentation: Refer to the official SAP documentation for more details on coding standards and best practices in ABAP.
  
  By following these steps, you should be able to resolve the D2018 error and ensure that your code adheres to the required naming conventions.