How To Fix SIW109 - Table type &2: Illegal key category &3 for operation code &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SIW - Service Implementation Workbench

• Message number: 109

• Message text: Table type &2: Illegal key category &3 for operation code &1

What causes this issue?

The value for the operation code is &v1& which don't matches to the
value for KEYKIND &v3&.

System Response

The feasibility check of table type object contains errors which
prevents its generation. For more information, see
<DS:TX.DDDOC_ACCMODE_KEYKIND>here</>.

How to fix this error?

Please correct the definition of Table Type with Object ID &v2& in your
configuration class.

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 SIW109 - Table type &2: Illegal key category &3 for operation code &1 ?

  The SAP error message SIW109 indicates that there is an issue with the key category of a table type in the context of an operation code. This error typically arises in scenarios involving ABAP programming, particularly when dealing with internal tables and their definitions.
  Cause:
  The error message SIW109 is triggered when:
  
  An operation is attempted on a table type that has an illegal key category. This can happen if the table is defined with a key that is not allowed for the specific operation being performed.
  The operation code specified in the error message is not compatible with the key category of the table type being used.
  
  Solution:
  To resolve the SIW109 error, you can take the following steps:
  
  
  Check Table Type Definition: Review the definition of the table type (the type of internal table) you are using. Ensure that the key category is appropriate for the operation you are trying to perform. For example, if you are trying to perform a read operation, ensure that the table is defined with a unique key.
  
  
  Review Operation Code: Look at the operation code mentioned in the error message. Ensure that it is compatible with the key category of the table type. If you are using a non-key operation on a table that requires a key, you will need to adjust your code accordingly.
  
  
  Modify Key Category: If necessary, modify the key category of the table type to match the requirements of the operation you are performing. This may involve changing the definition of the table type in the Data Dictionary (SE11).
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more information on the specific operation code and the expected key categories for table types.
  
  
  Debugging: If the issue persists, consider using the ABAP debugger to step through the code and identify where the illegal key category is being referenced.
  
  
  Related Information:
  
  Key Categories: In SAP ABAP, table types can have different key categories such as "standard", "sorted", or "hashed". Each category has specific rules regarding how data can be accessed and manipulated.
  ABAP Documentation: The SAP Help Portal and ABAP documentation provide detailed information on internal tables, their definitions, and the operations that can be performed on them.
  Community Forums: SAP Community and other forums can be useful for finding similar issues and solutions shared by other developers.
  
  By following these steps, you should be able to identify the root cause of the SIW109 error and implement a suitable solution.