How To Fix FDT_EXPRESSIONS430 - Unexpected type in &1; conversion problems possible

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 430

• Message text: Unexpected type in &1; conversion problems possible

What causes this issue?

In the current workflow action, the system has determined that for
object &v1&, a data object has been assigned with a type that is not
identical with the type of object &v1&. Note that the data object in
question may be assigned indirectly, namely as the result data object of
an expression that is assigned to the workflow action.
This is not necessarily an error, but type conversion problems may arise
at runtime that cannot be resolved by the system.

System Response

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

How to fix this error?

To ensure that no conversion problems arise, we recommend you use data
objects that refer to the expected Dictionary structures.
INCLUDE FDT_WORKFLOW_TYPES OBJECT DOKU ID TX

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS430 - Unexpected type in &1; conversion problems possible ?

  The SAP error message FDT_EXPRESSIONS430 indicates that there is an unexpected data type in a field or expression, which may lead to conversion problems. This error typically arises in the context of SAP's Flexible Data Import (FDI) or when working with expressions in the context of data processing.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is a mismatch between the expected data type and the actual data type being processed. For example, if a numeric field is expected but a string is provided, this error may occur.
  Invalid Expressions: If you are using expressions in your data processing, an invalid or unsupported expression can trigger this error.
  Configuration Issues: Incorrect configuration in the data model or data mapping can lead to unexpected data types being encountered.
  
  Solution:
  
  Check Data Types: Review the data types of the fields involved in the expression or data processing. Ensure that they match the expected types. You can do this by checking the data dictionary or the relevant configuration settings.
  Validate Expressions: If you are using expressions, validate them to ensure they are correctly formed and compatible with the data types being used. Look for any syntax errors or unsupported operations.
  Debugging: Use debugging tools to trace the execution of the program or process that is generating the error. This can help identify where the unexpected type is being introduced.
  Review Configuration: Check the configuration settings related to the data processing or import. Ensure that mappings and transformations are correctly defined.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific context in which the error occurs. This can provide insights into common pitfalls and best practices.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed. Other users may have encountered the same error and can offer solutions.
  Testing: If possible, create a test case with simplified data to reproduce the error. This can help isolate the issue and facilitate troubleshooting.
  
  By following these steps, you should be able to identify the cause of the FDT_EXPRESSIONS430 error and implement a solution to resolve it.