How To Fix SY190 - Length change not allowed in conversion (&/&)

SY190 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 190

• Message text: Length change not allowed in conversion (&/&)

Self-Explanatory Message

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SY190 - Details

• The SAP error message SY190, which states "Length change not allowed in conversion (&/&)," typically occurs when there is an attempt to convert data types or structures in a way that would change the length of the data. This can happen in various scenarios, such as when you are trying to assign a value from one variable to another where the target variable has a different length than the source variable.
  
  Cause:
  
  Data Type Mismatch: The most common cause is a mismatch in the lengths of the source and target fields. For example, trying to assign a longer string to a shorter string variable.
  Field Length Definitions: If the field lengths are defined differently in the database or in the ABAP program, this error can occur.
  Implicit Conversions: Implicit conversions that change the length of the data can trigger this error.
  
  
  Solution:
  
  Check Data Types: Ensure that the data types and lengths of the source and