How To Fix FDT_EXPRESSIONS816 - Mapping parameter position &1 (&2): Incompatible move type

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 816

• Message text: Mapping parameter position &1 (&2): Incompatible move type

What causes this issue?

In the implementation of the ABAP method associated with the current
static method call expression, a wrong or unknown move type has been
used for parameter &V1& in an internal instruction.

System Response

The expression cannot be activated.

How to fix this error?

Check the implementation of your method and replace the erroneous move
type by the correct one. The list of supported move types is available
as attributes <EX>GC_MOVE_TYPE_*</> of interface
<EX>IF_FDT_STATIC_METHOD</>.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS816 - Mapping parameter position &1 (&2): Incompatible move type ?

  The SAP error message FDT_EXPRESSIONS816 typically occurs in the context of data mapping or transformation processes, particularly when using the SAP Data Services or SAP Process Integration (PI) tools. This error indicates that there is an issue with the mapping of parameters, specifically that the move type of the source and target fields is incompatible.
  Cause:
  The error arises when:
  
  Incompatible Data Types: The source and target fields have incompatible data types. For example, trying to map a string to a numeric field without proper conversion.
  Incorrect Mapping Configuration: The mapping configuration may not align with the expected data types or structures.
  Move Type Issues: The move type defined for the mapping does not match the expected move type for the target field. For instance, if the target field expects a certain type of input (like a single value) but the source provides a different type (like a list or array).
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Data Types: Verify the data types of both the source and target fields. Ensure that they are compatible. If necessary, use conversion functions to convert the data types appropriately.
  
  
  Review Mapping Logic: Go through the mapping logic in your transformation or mapping configuration. Ensure that the mapping is set up correctly and that the move types are appropriate for the fields being mapped.
  
  
  Adjust Move Types: If the move type is explicitly defined in the mapping, ensure that it matches the expected move type for the target field. You may need to change the move type or adjust the source data accordingly.
  
  
  Test with Sample Data: If possible, test the mapping with sample data to see if the error persists. This can help isolate the issue.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the mapping functions and move types relevant to your version of SAP.
  
  
  Debugging: If the issue is not clear, consider enabling debugging or logging features to get more detailed information about the mapping process and where it fails.
  
  
  Related Information:
  
  SAP Data Services: If you are using SAP Data Services, familiarize yourself with the data transformation functions and how to handle data type conversions.
  SAP PI/PO: If you are working with SAP Process Integration or Process Orchestration, review the mapping guidelines and best practices for handling data types and structures.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the FDT_EXPRESSIONS816 error in your SAP environment.