How To Fix SD_EXPRESSION064 - Paramcount &1 not allowed in expression &2

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_EXPRESSION - Messages processing AST expressions

• Message number: 064

• Message text: Paramcount &1 not allowed in expression &2

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_EXPRESSION064 - Paramcount &1 not allowed in expression &2 ?

  The SAP error message SD_EXPRESSION064 with the text "Paramcount &1 not allowed in expression &2" typically occurs in the context of SAP Sales and Distribution (SD) when there is an issue with the number of parameters being passed to a function or expression in a pricing procedure or condition type.
  Cause:
  This error is generally caused by one of the following reasons:
  
  Incorrect Number of Parameters: The expression or function being called expects a specific number of parameters, and the number provided does not match the expected count.
  Configuration Issues: There may be a misconfiguration in the pricing procedure or condition type where the parameters are not set up correctly.
  Custom Code: If there is custom code or enhancements in the pricing logic, it may not be handling parameters correctly.
  
  Solution:
  To resolve the SD_EXPRESSION064 error, you can take the following steps:
  
  
  Check the Expression: Review the expression or function that is causing the error. Ensure that the number of parameters being passed matches the expected count defined in the SAP system.
  
  
  Review Pricing Procedure: Go to the pricing procedure configuration in the SAP system and check the condition types involved. Make sure that they are set up correctly and that the parameters are defined as expected.
  
  
  Debugging: If you have access to debugging tools, you can set breakpoints in the relevant pricing logic to see what parameters are being passed and identify where the mismatch occurs.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for the specific condition type or expression to understand the expected parameters.
  
  
  Check Custom Code: If there are any custom enhancements or modifications in the pricing logic, review the code to ensure it is correctly handling the parameters.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  Testing: After making changes, perform thorough testing to ensure that the issue is resolved and that the pricing logic works as intended.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like V/08 (for condition types) and V/06 (for pricing procedures) to access and modify the relevant configurations.
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  SAP Support: If the issue persists and you have a support contract, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the SD_EXPRESSION064 error in your SAP system.