How To Fix WL108 - Expression & has object type & and not & (=reference object type)

WL108 - Overview

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 108

• Message text: Expression & has object type & and not & (=reference object type)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL108 - Expression & has object type & and not & (=reference object type) ?

  The SAP error message WL108 indicates that there is a type mismatch in your ABAP code, specifically related to object types. This error typically occurs when you are trying to use an expression that has an object type that does not match the expected reference object type.
  
  Cause:
  The error message WL108 is triggered when:
  
  You are trying to assign or compare an object of one type to another object of a different type.
  The expression you are using has an object type that is not compatible with the expected reference object type.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Object Types: Review the types of the objects involved in the expression. Ensure that they are compatible. You can do this by checking the data dictionary or the definitions of the classes/interfaces involved.
  
  
  Type Casting: If you are certain that the objects can be treated as the same type, you may need to