How To Fix CTS_API002 - Parameter CATEGORY can only have value 'K' or 'W'

SAP Error Message - Details

• Message type: E = Error

• Message class: CTS_API - CTS API

• Message number: 002

• Message text: Parameter CATEGORY can only have value 'K' or 'W'

What causes this issue?

You want to create a new change request. To do this, you need to define
the request type. You have the following options:
"K" Consolidation request
"W" Customizing request
The value "&V1&" is not permitted.

System Response

No request is created.

How to fix this error?

Specify a valid request type.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CTS_API002 - Parameter CATEGORY can only have value 'K' or 'W' ?

  The SAP error message CTS_API002 indicates that there is an issue with the parameter CATEGORY in the Change and Transport System (CTS). This parameter is expected to have a value of either 'K' (for customizing requests) or 'W' (for workbench requests). If a different value is provided, this error will occur.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Incorrect Parameter Value: The CATEGORY parameter is being set to a value other than 'K' or 'W'.
  Custom Code or Configuration: If there is custom code or a configuration that incorrectly sets the CATEGORY parameter, it can lead to this error.
  Transport Request Creation: When creating a transport request, if the system is not able to determine the correct category, it may default to an invalid value.
  
  Solution:
  To resolve the CTS_API002 error, you can take the following steps:
  
  
  Check the Code: If you are using custom code or a custom program that interacts with the CTS, review the code to ensure that the CATEGORY parameter is being set correctly. It should only be set to 'K' or 'W'.
  
  
  Review Transport Request: If you are trying to create or manage a transport request, ensure that you are using the correct transaction codes and that the request type is appropriate for the changes you are making.
  
  
  Use Standard Transactions: Always use standard SAP transactions for creating and managing transport requests (e.g., SE09 for workbench requests and SE10 for customizing requests) to avoid issues with incorrect parameters.
  
  
  Check for User Exits or BAdIs: If there are any user exits or BAdIs that might be modifying the CATEGORY parameter, review them to ensure they are functioning correctly.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that might provide more context about the issue.
  
  
  Related Information:
  
  Transport Management System (TMS): Understanding how TMS works can help in managing transport requests effectively.
  SAP Documentation: Refer to the official SAP documentation for detailed information on transport requests and the Change and Transport System.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.