How To Fix OO102 - Blank characters are not permitted in names

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 102

• Message text: Blank characters are not permitted in names

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO102 - Blank characters are not permitted in names ?

  The SAP error message OO102, which states "Blank characters are not permitted in names," typically occurs when you are trying to create or modify an object (such as a class, method, or variable) in the ABAP programming environment, and the name you have provided contains spaces or blank characters. This is not allowed in SAP naming conventions.
  Cause:
  
  Spaces in Names: The most common cause of this error is that the name you are trying to use contains one or more spaces. SAP does not allow spaces in object names.
  Invalid Characters: Sometimes, other invalid characters may also lead to this error, but the message specifically points to blank characters.
  Copy-Paste Issues: If you copied and pasted a name from another source, it might have included hidden spaces or formatting characters.
  
  Solution:
  
  Check for Spaces: Review the name you are trying to use and ensure that there are no spaces at the beginning, end, or within the name itself.
  Use Valid Naming Conventions: Ensure that the name adheres to SAP's naming conventions. For example:
  
  Names should start with a letter.
  They can contain letters, numbers, and underscores, but no spaces or special characters.
  
  
  Rename the Object: If you find that the name is invalid, rename the object to something that complies with the naming rules.
  Use the ABAP Editor: If you are using the ABAP editor, you can use the "Check" function to validate the name before saving.
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for different types of objects (e.g., classes, methods, variables) to avoid similar errors in the future.
  Documentation: Refer to the official SAP documentation or help resources for more details on naming conventions and best practices in ABAP programming.
  Error Handling: If you encounter this error frequently, consider implementing error handling in your development process to catch such issues early.
  
  By following these steps, you should be able to resolve the OO102 error and successfully create or modify your SAP objects.