How To Fix SD_EXPRESSION034 - Expression type &1 is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_EXPRESSION - Messages processing AST expressions

• Message number: 034

• Message text: Expression type &1 is not allowed

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SD_EXPRESSION034 - Expression type &1 is not allowed ?

  The SAP error message SD_EXPRESSION034 indicates that there is an issue with the expression type being used in a pricing procedure or condition record in the Sales and Distribution (SD) module. Specifically, the error message states that the expression type specified (denoted as &1) is not allowed in the context where it is being used.
  Cause:
  
  Invalid Expression Type: The expression type being used in the pricing procedure or condition record is not valid for the operation being performed. This could be due to a misconfiguration or an incorrect entry in the pricing procedure.
  Configuration Issues: The pricing procedure may not be set up correctly, or the condition types may not be compatible with the expression types being used.
  Custom Code: If there are any custom enhancements or modifications in the pricing logic, they may be causing the expression type to be invalid.
  
  Solution:
  
  Check Pricing Procedure: Review the pricing procedure configuration in the SAP system. Ensure that the expression types used are valid for the condition types defined in the pricing procedure.
  
  Transaction Code: V/08 (for pricing procedure configuration)
  
  
  Review Condition Types: Verify that the condition types associated with the pricing procedure are correctly configured and that their settings allow for the expression types being used.
  
  Transaction Code: V/06 (for condition type configuration)
  
  
  Consult Documentation: Refer to SAP documentation or help resources to understand the valid expression types for the specific context in which the error is occurring.
  Debugging: If the issue persists, consider debugging the pricing logic to identify where the invalid expression type is being triggered. This may involve checking custom code or enhancements.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on configuration best practices.
  
  Related Information:
  
  Expression Types: Familiarize yourself with the different expression types available in SAP SD and their intended use cases.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Testing: After making changes, conduct thorough testing to ensure that the pricing logic works as expected and that the error does not reoccur.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with an SAP SD expert or your organization's SAP support team for further assistance.