How To Fix 1B300 - Category &1 of message &2 (&3) is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: 1B - BKK: General Texts

• Message number: 300

• Message text: Category &1 of message &2 (&3) is invalid

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 1B300 - Category &1 of message &2 (&3) is invalid ?

  The SAP error message "1B300 Category &1 of message &2 (&3) is invalid" typically indicates that there is an issue with the configuration or data related to a specific message category in the SAP system. This error is often encountered in the context of message handling, such as when dealing with application logs, messages in the user interface, or other message-related functionalities.
  Cause:
  
  Invalid Message Category: The error suggests that the specified message category (represented by &1) is not recognized or is not valid in the context of the message type (&2).
  Configuration Issues: There may be a misconfiguration in the message handling settings or in the application that is trying to use the message.
  Data Integrity Issues: The data being processed may have inconsistencies or may not conform to the expected formats or values.
  
  Solution:
  
  Check Configuration: Review the configuration settings related to message handling in the relevant application area. Ensure that the message categories are correctly defined and that they match the expected values.
  Validate Data: Check the data being processed to ensure that it adheres to the expected formats and values. Look for any discrepancies that might lead to the invalid category error.
  Review Custom Code: If there is any custom code or enhancements that interact with message handling, review that code to ensure it is correctly implemented and does not introduce invalid categories.
  Consult Documentation: Refer to SAP documentation or help resources for the specific application or module you are working with to understand the valid message categories and their configurations.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message or provide guidance on resolving it.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may want to use transaction codes like SLG1 (Application Log) to view logs related to messages and identify the source of the error.
  Message Class: The message class associated with the error can provide additional context. You can look up the message class in transaction SE91 to find more details about the message and its intended use.
  Support: If the issue persists after checking the above points, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.