How To Fix SD_EXPRESSION065 - Datatype &1 not allowed in expression

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_EXPRESSION - Messages processing AST expressions

• Message number: 065

• Message text: Datatype &1 not allowed in expression

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_EXPRESSION065 - Datatype &1 not allowed in expression ?

  The SAP error message SD_EXPRESSION065 indicates that there is an issue with the data type being used in an expression within the Sales and Distribution (SD) module. Specifically, the error message states that the datatype specified (represented by &1) is not allowed in the context of the expression being evaluated.
  
  Cause:
  This error typically arises due to one of the following reasons:
  
  Incorrect Data Type: The expression is trying to use a data type that is not compatible with the operation being performed. For example, you might be trying to perform arithmetic operations on a string or a non-numeric data type.
  
  Configuration Issues: There may be a misconfiguration in the pricing procedure or condition records where the data types of fields are not aligned with what is expected.
  Custom Code: If there is custom code or user-defined fields involved, the data types may not be correctly defined or handled.
  
  
  Solution:
  To resolve the error, you can take