How To Fix OO240 - Name of subcomponent &1 &2 &3 is invalid: &3 contains lowercase letters

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 240

• Message text: Name of subcomponent &1 &2 &3 is invalid: &3 contains lowercase letters

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO240 - Name of subcomponent &1 &2 &3 is invalid: &3 contains lowercase letters ?

  The SAP error message OO240 indicates that there is an issue with the naming convention of a subcomponent in your SAP system. Specifically, the error states that the name of the subcomponent contains lowercase letters, which is not allowed according to SAP's naming conventions.
  Cause:
  The error occurs when you attempt to create or modify a subcomponent (such as a class, method, or other object) and the name you have provided includes lowercase letters. SAP enforces a naming convention that typically requires object names to start with an uppercase letter and to use only uppercase letters and underscores.
  Solution:
  To resolve this error, you should:
  
  
  Check the Name: Review the name of the subcomponent you are trying to create or modify. Ensure that it does not contain any lowercase letters.
  
  
  Rename the Subcomponent: If the name contains lowercase letters, rename the subcomponent to comply with SAP's naming conventions. For example, if the name is myComponent, you could change it to MY_COMPONENT or MyComponent.
  
  
  Follow Naming Conventions: Familiarize yourself with SAP's naming conventions for different types of objects. Generally, the following rules apply:
  
  Use uppercase letters and underscores.
  Start with an uppercase letter.
  Avoid special characters and spaces.
  
  
  
  Test the Changes: After renaming the subcomponent, try to save or activate it again to see if the error persists.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on naming conventions for various objects in the system.
  Development Guidelines: If you are part of a development team, check if there are any specific naming conventions or guidelines established by your organization.
  Error Handling: If you continue to encounter issues, consider checking the SAP community forums or reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to resolve the OO240 error and successfully create or modify your subcomponent in SAP.