How To Fix OO641 - Attribute names in persistent classes cannot be longer than 26 characters

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 641

• Message text: Attribute names in persistent classes cannot be longer than 26 characters

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 OO641 - Attribute names in persistent classes cannot be longer than 26 characters ?

  The SAP error message OO641 indicates that you are trying to define an attribute in a persistent class (typically in ABAP Objects) with a name that exceeds the maximum allowed length of 26 characters. This restriction is in place to ensure compatibility and maintainability within the SAP system.
  Cause:
  
  The attribute name you are trying to use in your persistent class exceeds the 26-character limit set by SAP for attribute names in persistent classes.
  
  Solution:
  
  
  Rename the Attribute: The most straightforward solution is to rename the attribute to ensure that it is 26 characters or fewer. Choose a concise and meaningful name that adheres to this limit.
  
  
  Check Naming Conventions: Ensure that your naming conventions are consistent and that you are not inadvertently using overly long names. Consider using abbreviations or shorter forms of the names if necessary.
  
  
  Refactor Code: If the attribute is already in use, you may need to refactor your code to accommodate the new name. This includes updating any references to the attribute throughout your class and any related classes or programs.
  
  
  Related Information:
  
  Persistent Classes: In SAP, persistent classes are used to represent database tables and their fields. Attributes in these classes correspond to the fields in the database.
  Naming Conventions: SAP has specific naming conventions and restrictions for various elements in ABAP, including classes, methods, and attributes. Familiarizing yourself with these conventions can help avoid similar issues in the future.
  Documentation: Refer to the official SAP documentation for guidelines on naming conventions and limitations for ABAP objects. This can provide additional context and best practices.
  
  By following these steps, you should be able to resolve the OO641 error and ensure that your attribute names comply with SAP's requirements.