How To Fix SIW090 - Table Type &1 defines no key fields although KEYDEF property is 'K'

SAP Error Message - Details

• Message type: E = Error

• Message class: SIW - Service Implementation Workbench

• Message number: 090

• Message text: Table Type &1 defines no key fields although KEYDEF property is 'K'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SIW090 - Table Type &1 defines no key fields although KEYDEF property is 'K' ?

  The SAP error message SIW090 indicates that there is a problem with the definition of a table type in your SAP system. Specifically, it states that the table type defined does not have any key fields, even though the KEYDEF property is set to 'K', which indicates that it should have key fields.
  Cause:
  
  Table Type Definition: The table type you are trying to use has been defined without any key fields. In SAP, a key field is necessary for certain operations, especially when dealing with internal tables that require unique identification of records.
  KEYDEF Property: The KEYDEF property being set to 'K' implies that the table type is expected to have key fields, but the actual definition does not comply with this expectation.
  
  Solution:
  
  
  Check Table Type Definition: 
  
  Go to the ABAP Dictionary (transaction SE11) and check the definition of the table type that is causing the error.
  Ensure that at least one field is defined as a key field. You can do this by editing the table type and marking the appropriate field(s) as key fields.
  
  
  
  Modify KEYDEF Property: 
  
  If the table type is not supposed to have key fields, you can change the KEYDEF property from 'K' to a value that indicates no key fields (usually ' ' or 'N').
  
  
  
  Recompile/Activate: After making changes to the table type, make sure to activate it. This will ensure that the changes take effect.
  
  
  Check Usage: If the table type is used in multiple places, ensure that all usages are compatible with the changes made. If you change the key fields, you may need to adjust the logic in the programs or function modules that utilize this table type.
  
  
  Related Information:
  
  ABAP Dictionary (SE11): This is where you can view and edit the definitions of database objects, including table types.
  Key Fields in SAP: Key fields are essential for uniquely identifying records in a table. They are used in various operations, including sorting, searching, and ensuring data integrity.
  Documentation: Refer to SAP documentation or help resources for more detailed information on defining table types and the implications of key fields.
  
  By following these steps, you should be able to resolve the SIW090 error and ensure that your table type is correctly defined for its intended use.