How To Fix SDDL_PARSER_MSG364 - Parameter "&1" is already used in the ON condition

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDL_PARSER_MSG - Message Class for DDL Parser

• Message number: 364

• Message text: Parameter "&1" is already used in the ON condition

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDDL_PARSER_MSG364 - Parameter "&1" is already used in the ON condition ?

  The SAP error message SDDL_PARSER_MSG364 indicates that there is a problem with the SQL query or condition in your SAP system, specifically related to the use of parameters in an ON condition. The message states that the parameter specified (represented by &1) is already being used in the ON condition, which typically means that there is a conflict or duplication in the way the parameters are defined or referenced.
  Cause:
  
  
  Duplicate Parameter Usage: The most common cause of this error is that the same parameter is being referenced multiple times in the ON condition of a join or a similar SQL operation. This can happen if the query is constructed incorrectly or if there is a misunderstanding of how to reference parameters.
  
  
  Incorrect Query Logic: The logic of the SQL query may be flawed, leading to an attempt to use the same parameter in a way that is not allowed.
  
  
  Misconfiguration: There may be a misconfiguration in the data model or the way the query is set up in the SAP system.
  
  
  Solution:
  
  
  Review the SQL Query: Check the SQL query or the condition where the error is occurring. Look for the ON clause and ensure that each parameter is only used once. If a parameter is needed multiple times, consider using a different alias or restructuring the query.
  
  
  Refactor the Query: If the same parameter needs to be used in multiple conditions, consider breaking the query into smaller parts or using subqueries to avoid duplication in the ON condition.
  
  
  Check Data Model: Ensure that the data model is correctly defined and that there are no conflicts in how parameters are being used.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for guidance on constructing SQL queries and understanding the specific requirements for ON conditions.
  
  
  Testing: After making changes, test the query to ensure that it runs without errors and returns the expected results.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance. They can provide more detailed guidance based on your specific system configuration and the context of the error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.