How To Fix RSDA_HDP107 - Column &1 must not be removed

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDA_HDP -

• Message number: 107

• Message text: Column &1 must not be removed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDA_HDP107 - Column &1 must not be removed ?

  The SAP error message RSDA_HDP107, which states "Column &1 must not be removed," typically occurs in the context of SAP Data Warehousing or SAP HANA when there is an attempt to modify a data model or a data source that is dependent on a specific column that cannot be removed.
  Cause:
  
  Dependency on Column: The column in question is likely being used in calculations, aggregations, or as part of a key in a data model, and removing it would break the integrity of the data model.
  Data Source Configuration: The column may be part of a data source that is configured in a way that it is required for the data extraction or transformation processes.
  Data Flow: The column might be involved in data flows or transformations that are critical for the reporting or analytics processes.
  
  Solution:
  
  Review Dependencies: Check the data model or data source to understand why the column is required. Look for any dependencies, such as calculations, filters, or joins that involve this column.
  Modify Instead of Remove: If you need to change the structure, consider modifying the column (e.g., renaming or changing its data type) instead of removing it.
  Consult Documentation: Refer to SAP documentation or guidelines related to the specific data model or data source you are working with to understand the implications of removing the column.
  Check for Updates: Ensure that your SAP system is up to date, as there may be patches or updates that address issues related to data model changes.
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, providing them with details about the data model and the context in which the error occurs.
  
  Related Information:
  
  SAP Data Warehousing: Understanding the architecture and dependencies in SAP BW (Business Warehouse) or SAP HANA can help in managing data models effectively.
  Data Modeling Best Practices: Familiarize yourself with best practices in data modeling to avoid such issues in the future, such as maintaining clear documentation of dependencies and impacts of changes.
  Error Logs: Check the error logs for additional context or related error messages that might provide more insight into the issue.
  
  By following these steps, you should be able to address the RSDA_HDP107 error and understand the implications of modifying your data model.