How To Fix FDT_CP_MSG178 - Operands in &1 function must be the same

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CP_MSG -

• Message number: 178

• Message text: Operands in &1 function must be the same

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CP_MSG178 - Operands in &1 function must be the same ?

  The SAP error message FDT_CP_MSG178 indicates that there is a mismatch in the operands used in a function within a formula or calculation. Specifically, it states that the operands in the specified function must be of the same type or structure, but they are not.
  Cause:
  This error typically arises in the context of using functions in SAP's Formula Editor or when working with data transformation tools like SAP Data Services or SAP Fiori applications. The most common causes include:
  
  Data Type Mismatch: The operands being used in the function are of different data types (e.g., trying to add a string to a number).
  Inconsistent Structures: If the operands are complex data types (like structures or tables), they may not have the same fields or structure.
  Incorrect Function Usage: The function being used may require specific types of operands that are not being met.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Operand Types: Review the operands being used in the function. Ensure that they are of the same data type. For example, if you are performing arithmetic operations, make sure all operands are numeric.
  
  
  Convert Data Types: If there is a mismatch, consider converting the data types to ensure they match. For example, you can use conversion functions like TO_NUMBER, TO_STRING, etc., depending on the context.
  
  
  Review Function Requirements: Consult the documentation for the specific function you are using to understand its requirements regarding operand types and structures.
  
  
  Debugging: If you are unsure where the mismatch is occurring, you can add debugging statements or logs to identify the types of the operands at runtime.
  
  
  Test with Sample Data: Create a small test case with sample data to isolate the issue and verify that the function works as expected with matching operand types.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific function you are using to understand its requirements and constraints.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  Data Type Reference: Familiarize yourself with the data types used in SAP to avoid common pitfalls related to type mismatches.
  
  By following these steps, you should be able to identify and resolve the cause of the FDT_CP_MSG178 error in your SAP environment.