How To Fix CNV_PE819 - Parameter &1 must not be of type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 819

• Message text: Parameter &1 must not be of type &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 CNV_PE819 - Parameter &1 must not be of type &2 ?

  The SAP error message CNV_PE819 indicates that a parameter in a function or method is of an unexpected type. The message format is as follows:
  
  Parameter &1: This is the name of the parameter that is causing the issue.
  Type &2: This indicates the type of the parameter that is currently being passed, which is not acceptable.
  
  Cause
  The error typically arises in the context of data conversion or migration processes, particularly when using SAP's Conversion Tools (like the SAP S/4HANA Migration Cockpit or other data migration tools). The root causes can include:
  
  Data Type Mismatch: The parameter being passed does not match the expected data type defined in the function or method. For example, if a string is expected but an integer is provided.
  Incorrect Mapping: During data migration, the mapping of fields from the source to the target system may be incorrect, leading to type mismatches.
  Configuration Issues: There may be configuration settings that are not aligned with the expected data types.
  
  Solution
  To resolve the CNV_PE819 error, you can take the following steps:
  
  Check Parameter Types: Review the function or method definition to understand the expected data types for the parameters. Ensure that the data being passed matches these types.
  Review Data Mapping: If this error occurs during a data migration process, check the mapping of fields between the source and target systems. Ensure that the data types are compatible.
  Data Validation: Validate the data being processed to ensure that it adheres to the expected formats and types. This may involve cleaning or transforming the data before it is passed to the function.
  Debugging: If you have access to the code, use debugging tools to trace the execution and identify where the incorrect type is being assigned or passed.
  Consult Documentation: Refer to the SAP documentation for the specific function or method to understand the expected parameters and their types.
  
  Related Information
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific function or migration tool you are using.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found.
  Testing: After making changes, conduct thorough testing to ensure that the issue is resolved and that no new issues have been introduced.
  
  By following these steps, you should be able to identify and resolve the CNV_PE819 error effectively.