How To Fix SY174 - Conversion from type & to type & not supported

SY174 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 174

• Message text: Conversion from type & to type & not supported

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SY174 - Conversion from type & to type & not supported ?

  The SAP error message SY174 indicates that there is an issue with data type conversion in your ABAP program. This error occurs when the system attempts to convert a value from one data type to another, but the conversion is not supported. This can happen in various scenarios, such as when you are trying to assign a value of one data type to a variable of another incompatible data type.
  Causes of SY174 Error
  
  
  Incompatible Data Types: The most common cause is that the source and target data types are not compatible. For example, trying to assign a character string to a numeric variable without proper conversion.
  
  
  Implicit Conversion Failure: ABAP sometimes performs implicit conversions, but if the conversion is not possible (e.g., trying to convert a string that does not represent a number to a numeric type), this error will occur.
  
  
  Incorrect Field Definitions: If the fields in a structure or table are