How To Fix /SAPAPO/ABCCLASS099 - The XYZ class name must begin with a letter of the English alphabet

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ABCCLASS -

• Message number: 099

• Message text: The XYZ class name must begin with a letter of the English alphabet

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ABCCLASS099 - The XYZ class name must begin with a letter of the English alphabet ?

  The SAP error message /SAPAPO/ABCCLASS099 indicates that there is an issue with the naming convention of a class in the Advanced Planning and Optimization (APO) module. Specifically, the error states that the class name must begin with a letter of the English alphabet. 
  Cause:
  The error is triggered when a user attempts to create or modify a class in SAP APO, and the class name provided does not adhere to the naming conventions. The naming convention requires that the first character of the class name must be an English alphabet letter (A-Z, a-z). If the class name starts with a number, special character, or is empty, this error will occur.
  Solution:
  To resolve this error, follow these steps:
  
  
  Check the Class Name: Review the class name you are trying to create or modify. Ensure that it starts with a letter from the English alphabet.
  
  
  Modify the Class Name: If the class name does not meet the criteria, change it to start with a letter. For example, if the class name is 123Class, change it to Class123.
  
  
  Avoid Special Characters: Ensure that the class name does not contain any special characters at the beginning. Stick to alphanumeric characters.
  
  
  Re-attempt the Operation: After making the necessary changes to the class name, try to create or modify the class again.
  
  
  Related Information:
  
  Naming Conventions: Familiarize yourself with the naming conventions and guidelines provided by SAP for class names and other identifiers. This can help prevent similar errors in the future.
  Documentation: Refer to the SAP Help Portal or the specific documentation for SAP APO for more details on class creation and naming conventions.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions related to this error message.
  
  By ensuring that the class name adheres to the specified conventions, you should be able to resolve the error and proceed with your work in SAP APO.