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How To Fix CACSGEN109 - Table &1 will not be generated due to lack of real key fields


CACSGEN109 - Overview

  • Message type: E = Error

  • Message class: CACSGEN - Messages From Generation

  • Message number: 109

  • Message text: Table &1 will not be generated due to lack of real key fields

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  • 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.

    To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

    Unfortunately, there isn't any extra information in this error notice.



    What else can you do?

    First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

    Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

    You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.


CACSGEN109 - Details

  • The SAP error message CACSGEN109 indicates that a table cannot be generated because it lacks the necessary real key fields. This typically occurs in the context of data modeling or when defining database tables in the ABAP Dictionary (SE11).
    
    Cause: The error arises when you attempt to create or generate a table that does not have any key fields defined. Key fields are essential for uniquely identifying records in a database table. Without at least one key field, the system cannot ensure the uniqueness of the records, which is a fundamental requirement for database tables.
    Solution: To resolve this error, you need to ensure that your table definition includes at least one real key field. Here are the steps to do this: Open the Table Definition: Go to transaction code SE11 (Data Dictionary). Enter the name of the table that is causing the error and click on "Display" or "Change". Define Key Fields: Navigate to the "Fields" tab. Identify the

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