/IPRO/DBMC326 - Keyfield &1 has default values; not allowed in table variables

SAP Error Message - Details

• Message type: E = Error

• Message class: /IPRO/DBMC -

• Message number: 326

• Message text: Keyfield &1 has default values; not allowed in table variables

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message /IPRO/DBMC326 - Keyfield &1 has default values; not allowed in table variables ?

  The SAP error message /IPRO/DBMC326 Keyfield &1 has default values; not allowed in table variables typically occurs in the context of ABAP programming, particularly when dealing with internal tables and their key fields. This error indicates that a key field in a table variable has been assigned a default value, which is not permitted.
  Cause:
  
  Key Field with Default Value: The error arises when you define an internal table with a key field that has a default value assigned. In ABAP, key fields in internal tables must not have default values because they are used to uniquely identify records in the table.
  Table Variable Definition: The error can also occur if the table variable is defined incorrectly, or if the key fields are not properly initialized.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Key Field Initialization:
  
  Ensure that the key fields of your internal table are not initialized with default values. You can do this by explicitly defining the key fields without assigning them any default values.
  
  DATA: lt_table TYPE TABLE OF your_structure WITH EMPTY KEY.
  
  
  Remove Default Values:
  
  If you have defined default values for key fields in your structure, remove those default values. Key fields should be defined without any default initialization.
  
  
  
  Review Table Declaration:
  
  Make sure that the internal table is declared correctly. If you are using a table variable, ensure that it is defined with the correct key fields and without default values.
  
  
  
  Use Proper Key Definition:
  
  If you need to define a key for your internal table, use the WITH UNIQUE KEY or WITH NON-UNIQUE KEY syntax appropriately, ensuring that no default values are assigned.
  
  
  
  Debugging:
  
  If the error persists, use debugging tools to trace where the key fields are being assigned default values and correct those assignments.
  
  
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for more details on internal tables and key field definitions.
  SAP Community: You can also check the SAP Community forums for similar issues and solutions shared by other developers.
  SAP Notes: Look for any relevant SAP Notes that might address this specific error or provide additional context.
  
  By following these steps, you should be able to resolve the error and ensure that your internal table is defined correctly without default values for key fields.