How To Fix DD_MT_SHARING017 - Field &1 is not a key field of table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: DD_MT_SHARING - DDIC Multi Tenancy Sharing: Messages

• Message number: 017

• Message text: Field &1 is not a key field of table &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DD_MT_SHARING017 - Field &1 is not a key field of table &2 ?

  The SAP error message DD_MT_SHARING017 indicates that a field specified in a data dictionary operation (like a table or view definition) is not a key field of the specified table. This error typically arises when you are trying to perform an operation that requires a field to be a key field, but the field in question is not defined as such in the table's structure.
  Cause:
  
  Field Definition: The field you are trying to use is not defined as a key field in the table definition. Key fields are essential for uniquely identifying records in a table.
  Incorrect Table/Field Reference: There may be a mistake in the table or field name you are referencing, leading to the system not recognizing the field as a key.
  Data Dictionary Changes: If there have been recent changes to the data dictionary (like adding or removing key fields), the system may not have been updated accordingly.
  
  Solution:
  
  
  Check Table Definition:
  
  Go to the Data Dictionary (transaction SE11) and check the definition of the table in question.
  Verify if the field you are trying to use is indeed marked as a key field.
  
  
  
  Modify Field Usage:
  
  If the field is not a key field and you need it to be, you may need to modify the table definition to include it as a key field. This requires appropriate authorizations and should be done with caution, as it can affect existing data and applications.
  
  
  
  Correct the Code:
  
  If you are working with ABAP code or a data model, ensure that you are referencing the correct fields and tables. Adjust your code to use a valid key field.
  
  
  
  Consult Documentation:
  
  Review any relevant documentation or change logs to understand if there have been recent changes to the table structure that might affect your operation.
  
  
  
  Testing:
  
  After making changes, test the operation again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Key Fields: Key fields in SAP tables are used to uniquely identify records. They are crucial for operations like updates, deletes, and joins.
  Data Dictionary (SE11): This is the transaction code used to access the Data Dictionary in SAP, where you can view and modify table definitions.
  Authorization: Ensure you have the necessary authorizations to make changes to table definitions, as this can impact the entire application.
  
  If you continue to face issues after following these steps, consider reaching out to your SAP Basis or development team for further assistance.