How To Fix E2407 - Secondary keys are invalid for ranges table type

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 407

• Message text: Secondary keys are invalid for ranges table type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message E2407 - Secondary keys are invalid for ranges table type ?

  The SAP error message E2407, which states "Secondary keys are invalid for ranges table type," typically occurs when there is an issue with the definition of secondary keys in a table that is defined as a range table type. This error is often encountered in ABAP programming when working with internal tables.
  Cause:
  
  Incorrect Table Definition: The internal table is defined as a range table type, which does not support secondary keys. Range tables are designed to hold ranges of values and do not allow for secondary indexing.
  Use of Secondary Keys: Attempting to define or use secondary keys on a range table type, which is not permitted in ABAP.
  
  Solution:
  
  Check Table Type: Ensure that the internal table is not defined as a range table type if you intend to use secondary keys. If you need to use secondary keys, define the internal table as a standard or sorted table instead.
  DATA: lt_my_table TYPE TABLE OF my_structure. " Standard table
  
  Remove Secondary Key Definitions: If you are using a range table and have defined secondary keys, remove those definitions. You can only use primary keys with range tables.
  Use Appropriate Data Structures: If you need to work with ranges and also require secondary keys, consider using a different data structure that allows for both, such as a standard or sorted table, and manage the range logic manually.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the different types of internal tables in ABAP (standard, sorted, hashed, and range tables) and their characteristics.
  Documentation: Refer to the SAP Help Portal or ABAP documentation for more details on internal tables and their usage.
  Debugging: If you encounter this error, use the ABAP debugger to trace where the secondary key is being defined or used incorrectly.
  
  By following these steps, you should be able to resolve the E2407 error and ensure that your internal table definitions are appropriate for your use case.