How To Fix WL300 - Operation '&' between type '&' and type '&' still not implemented

WL300 - Overview

• Message type: E = Error

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

• Message number: 300

• Message text: Operation '&' between type '&' and type '&' still not implemented

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL300 - Operation '&' between type '&' and type '&' still not implemented ?

  The SAP error message WL300, which states "Operation '&' between type '&' and type '&' still not implemented," typically occurs when there is an attempt to perform an operation (like addition, subtraction, etc.) between two data types that are not compatible or not supported in the context of the operation being performed.
  
  Cause:
  
  Incompatible Data Types: The error usually arises when the operation involves two different data types that cannot be directly operated on. For example, trying to add a string to a numeric type.
  Unsupported Operations: The operation being attempted may not be implemented for the specific combination of data types.
  Custom Code Issues: If you are using custom ABAP code, there may be logic that is trying to perform operations on types that are not defined or not compatible.
  
  
  Solution:
  
  Check Data Types: Review the data types of the variables involved in the operation. Ensure that they are compatible for the operation you are