How To Fix FDT_SERVICE015 - Tables of &1 with different lines must not be compared with operator &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_SERVICE - Formula & Derivation Tool: Services

• Message number: 015

• Message text: Tables of &1 with different lines must not be compared with operator &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_SERVICE015 - Tables of &1 with different lines must not be compared with operator &2 ?

  The SAP error message FDT_SERVICE015 indicates that there is an issue with comparing tables that have different line types using a specific operator. This error typically arises in the context of data transformation or data processing within SAP, particularly when using the SAP Fiori Data Transformation (FDT) framework.
  Cause:
  The error occurs when:
  
  You are trying to compare two tables (or internal tables) that have different structures or line types.
  The comparison operator being used (denoted by &2 in the error message) is not valid for the types of data being compared.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Table Structures: Ensure that the tables you are trying to compare have the same structure. You can do this by checking the data types and fields of both tables.
  
  
  Use Compatible Operators: Make sure that the operator you are using for comparison is appropriate for the data types of the fields in the tables. For example, if you are comparing numeric fields, ensure that both fields are indeed numeric.
  
  
  Data Transformation: If the tables have different structures, consider transforming one of the tables to match the structure of the other before performing the comparison. This may involve selecting specific fields or converting data types.
  
  
  Debugging: If you are unsure where the error is occurring, use debugging tools in SAP to trace the execution of the code and identify the exact point of failure.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more information on the specific operators and data types that can be used in comparisons.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  FDT Documentation: Review the official SAP FDT documentation for guidelines on data transformation and handling comparisons.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.