How To Fix SD_EXPRESSION066 - Function &1 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: SD_EXPRESSION - Messages processing AST expressions

• Message number: 066

• Message text: Function &1 is unknown

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SD_EXPRESSION066 - Function &1 is unknown ?

  The SAP error message SD_EXPRESSION066 with the description "Function &1 is unknown" typically occurs in the context of SAP Sales and Distribution (SD) when there is an issue with a pricing procedure or a condition type that references a function that is not recognized by the system.
  Causes:
  
  Missing Function Module: The function module that is being called in the pricing procedure or condition type may not exist in the system.
  Incorrect Configuration: The pricing procedure may be incorrectly configured, referencing a function that is not valid or has been deleted.
  Transport Issues: If the pricing procedure or related configuration was transported from another system, there may have been issues during the transport that caused the function to be missing.
  Version Mismatch: There may be a version mismatch if the function was created in a different version of SAP and is not available in the current version.
  
  Solutions:
  
  Check Function Module: Verify if the function module referenced in the error message exists in the system. You can do this by using transaction code SE37 (Function Builder) to search for the function module.
  Review Pricing Procedure: Go to transaction code V/08 (Maintain Pricing Procedures) and check the pricing procedure that is causing the error. Ensure that all functions referenced are valid and exist in the system.
  Correct Configuration: If you find that the function is missing or incorrectly referenced, you may need to correct the configuration. This could involve creating a new function module or updating the pricing procedure to reference a valid function.
  Transport Check: If the issue arose after a transport, check the transport logs for any errors and ensure that all necessary objects were transported correctly.
  Consult Documentation: Review SAP documentation or notes related to the specific function or pricing procedure for any known issues or updates.
  
  Related Information:
  
  Transaction Codes: 
  
  SE37: Function Builder
  V/08: Maintain Pricing Procedures
  V/06: Maintain Condition Types
  
  
  SAP Notes: Check SAP Notes for any known issues related to the specific function or pricing procedure.
  Debugging: If necessary, you can debug the pricing procedure to see where the error is occurring and gather more information about the context of the error.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or functional team for further assistance.