How To Fix SMT155 - Parameter I_DATA1 and I_DATA2 must have the same type

SMT155 - Overview

• Message type: E = Error

• Message class: SMT -

• Message number: 155

• Message text: Parameter I_DATA1 and I_DATA2 must have the same type

Self-Explanatory Message

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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 SMT155 - Parameter I_DATA1 and I_DATA2 must have the same type ?

  The SAP error message SMT155, which states "Parameter I_DATA1 and I_DATA2 must have the same type," typically occurs in the context of ABAP programming when there is a mismatch in the data types of two parameters being passed to a function module or method. This error indicates that the system expects both parameters to be of the same data type, but they are not.
  
  Cause:
  
  Data Type Mismatch: The most common cause of this error is that the two parameters (I_DATA1 and I_DATA2) are defined with different data types in the function module or method signature.
  Inconsistent Data Structures: If you are passing structures or tables, the fields within those structures or tables may have different types.
  Implicit Type Conversion: Sometimes, implicit type conversion may not occur as expected, leading to this error.
  
  
  Solution:
  
  Check Parameter Definitions: Review the function module or method definition to ensure that both parameters are defined with the same data type.