How To Fix REST_CORE_TEXTS028 - Creation of handler class failed (class not found)

SAP Error Message - Details

• Message type: E = Error

• Message class: REST_CORE_TEXTS -

• Message number: 028

• Message text: Creation of handler class failed (class not found)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message REST_CORE_TEXTS028 - Creation of handler class failed (class not found) ?

  The SAP error message REST_CORE_TEXTS028: Creation of handler class failed (class not found) typically occurs in the context of developing or deploying RESTful services in SAP systems, particularly when using the SAP Gateway or SAP Cloud Platform.
  
  Cause:
  This error generally indicates that the system is unable to find the specified handler class that is supposed to process the incoming requests for the REST service. The reasons for this could include:
  
  Class Not Implemented: The handler class has not been implemented or is missing from the system.
  Incorrect Naming: The name of the handler class might be misspelled or incorrectly referenced in the service configuration.
  Transport Issues: If the class was recently transported from another system, it may not have been transported correctly or may not exist in the target system.
  Authorization Issues: The user executing the service may not have the necessary authorizations to access the handler class.
  Namespace Issues: The class might be in a