How To Fix IU791 - Table & is a basis table - incremental migration therefore makes no sense


SAP Error Message - Details

  • Message type: E = Error

  • Message class: IU - Incremental Conversion (ICNV)

  • Message number: 791

  • Message text: Table & is a basis table - incremental migration therefore makes no sense

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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.



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Smart SAP Assistant

  • What is the cause and solution for SAP error message IU791 - Table & is a basis table - incremental migration therefore makes no sense ?

    The SAP error message IU791 indicates that the system has encountered an issue related to a specific table during an incremental migration process. The message suggests that the table in question is a "basis table," which typically means it is a core table that is fundamental to the SAP system's operation. Incremental migration refers to the process of migrating data in stages rather than all at once.

    Cause:

    1. Table Type: The error arises because the table is classified as a basis table, which means it is not designed to support incremental migration. Basis tables usually contain essential configuration or master data that should be fully migrated in one go.
    2. Migration Strategy: The migration strategy being used may not be appropriate for the type of data contained in the table. Incremental migration is typically used for transactional data or data that can be migrated in parts, while basis tables require a complete migration.
    3. Data Integrity: The system may be enforcing data integrity rules that prevent partial updates to critical tables.

    Solution:

    1. Full Migration: Instead of attempting an incremental migration for the specified table, perform a full migration. This means migrating all the data in that table at once.
    2. Review Migration Plan: Reassess your migration strategy to ensure that it aligns with the types of tables you are working with. Identify which tables can be migrated incrementally and which require a full migration.
    3. Consult Documentation: Refer to SAP documentation or migration guides specific to your version of SAP to understand the best practices for migrating basis tables.
    4. Error Handling: If the error persists, consider reaching out to SAP support or consulting with an SAP expert to troubleshoot the issue further.

    Related Information:

    • SAP Migration Tools: Familiarize yourself with the tools provided by SAP for data migration, such as the SAP Data Services or SAP S/4HANA Migration Cockpit, which may have specific guidelines for handling different types of tables.
    • Data Model: Understand the data model of your SAP system to identify which tables are considered basis tables and how they relate to other data.
    • Testing: Before executing the migration, conduct thorough testing in a development or sandbox environment to ensure that the migration process works as expected without errors.

    By addressing the cause of the error and implementing the suggested solutions, you should be able to resolve the IU791 error and successfully complete your migration process.

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