How To Fix RSDL057 - Field name &1 is reserved in BW. Use another field name for the view

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDL - BW DB Connect

• Message number: 057

• Message text: Field name &1 is reserved in BW. Use another field name for the view

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 RSDL057 - Field name &1 is reserved in BW. Use another field name for the view ?

  The SAP error message RSDL057 indicates that you are trying to use a field name in a BW (Business Warehouse) view that is reserved or already in use by the system. This typically occurs when you are creating or modifying a DataSource, InfoObject, or a query in BW and you attempt to use a field name that conflicts with existing reserved names or system-defined fields.
  Cause:
  
  Reserved Field Names: Certain field names are reserved by SAP for internal use or are already defined in the BW system. Using these names can lead to conflicts and errors.
  Naming Conventions: The BW system has specific naming conventions and restrictions. If your field name does not comply with these conventions, it may trigger this error.
  Existing Objects: The field name you are trying to use may already be associated with another object in the BW system, leading to a naming conflict.
  
  Solution:
  
  Choose a Different Name: The simplest solution is to rename the field to something that is not reserved. Ensure that the new name adheres to SAP's naming conventions (e.g., starting with a letter, not exceeding a certain length, etc.).
  Check Reserved Names: Refer to SAP documentation or the BW system to identify reserved field names. This can help you avoid using them in the future.
  Review Existing Objects: Check if the field name is already in use by another object in your BW system. You can do this by searching for the field name in the Data Dictionary (SE11) or in the BW modeling tools.
  Consult SAP Notes: Sometimes, specific issues related to reserved names may be documented in SAP Notes. Check the SAP Support Portal for any relevant notes that might provide additional context or solutions.
  
  Related Information:
  
  SAP BW Naming Conventions: Familiarize yourself with the naming conventions for fields and objects in SAP BW to avoid similar issues in the future.
  Data Dictionary (SE11): Use the Data Dictionary transaction to look up existing fields and their definitions.
  SAP Community: Engage with the SAP Community forums for insights and experiences from other users who may have encountered similar issues.
  Documentation: Review the official SAP BW documentation for best practices in modeling and naming conventions.
  
  By following these steps, you should be able to resolve the RSDL057 error and successfully create or modify your BW view.