How To Fix RSM600 - The row cannot be less than 1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 600

• Message text: The row cannot be less than 1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM600 - The row cannot be less than 1 ?

  The SAP error message RSM600, which states "The row cannot be less than 1," typically occurs in the context of SAP's reporting or data processing functions, particularly when dealing with internal tables or data structures. This error indicates that an operation is attempting to access a row index that is invalid, specifically a row index that is less than 1.
  Cause:
  
  Invalid Indexing: The most common cause of this error is that the code is trying to access an index of an internal table or data structure that does not exist. In SAP ABAP, internal table indices start at 1, so trying to access index 0 or a negative index will trigger this error.
  Looping Issues: If there is a loop that incorrectly initializes or modifies the index variable, it may lead to an attempt to access an invalid row.
  Data Manipulation Errors: If there are operations that manipulate the internal table (like deleting rows) without proper checks, it may lead to an invalid index being referenced.
  
  Solution:
  
  
  Check Index Values: Review the code to ensure that any index being used to access an internal table is always greater than or equal to 1. You can add checks before accessing the table to ensure the index is valid.
  IF index >= 1 AND index <= lines(internal_table).
      " Access the internal table
  ELSE.
      " Handle the error or set a default value
  ENDIF.
  
  
  Debugging: Use the debugger to step through the code and monitor the values of the index variable. This will help identify where the index is being set incorrectly.
  
  
  Loop Control: Ensure that any loops that iterate over internal tables are correctly set up. For example, using LOOP AT constructs should be done with proper control variables.
  
  
  Error Handling: Implement error handling to catch situations where an invalid index might be used. This can include using TRY...ENDTRY blocks or checking conditions before accessing the table.
  
  
  Related Information:
  
  ABAP Documentation: Review the SAP ABAP documentation for more details on internal tables and their indexing.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to identify the root cause of the RSM600 error and implement a solution to prevent it from occurring in the future.