How To Fix FDT_EXPRESSIONS429 - Type mismatch in &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 429

• Message text: Type mismatch in &1

What causes this issue?

For the &v1& element of the current workflow action, you have assigned a
BRFplus data object or an expression that is not compatible with the
type of the corresponding container element of the assigned workflow.

System Response

The workflow action cannot be activated.

How to fix this error?

Make sure that the type of the assigned data object (or the type of
assigned expression's result data object) is compatible with the
corresponding workflow container element.
INCLUDE FDT_WORKFLOW_TYPES OBJECT DOKU ID TX

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_EXPRESSIONS429 - Type mismatch in &1 ?

  The SAP error message FDT_EXPRESSIONS429: Type mismatch in &1 typically occurs in the context of SAP's Flexible Data Import (FDI) or when working with expressions in the context of data processing. This error indicates that there is a type mismatch between the expected data type and the actual data type being processed.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is that the data being processed does not match the expected data type. For example, if a numeric field is expected but a string is provided, this error will occur.
  Incorrect Field Mapping: If fields are incorrectly mapped in the data transformation or import process, it can lead to type mismatches.
  Expression Logic: If you are using expressions or calculations that involve different data types (e.g., trying to perform arithmetic on a string), this can also trigger the error.
  
  Solution:
  
  Check Data Types: Review the data being imported or processed to ensure that it matches the expected data types. For example, if a field is expected to be numeric, ensure that the data being provided is indeed numeric.
  Review Field Mappings: If you are using a data transformation tool, check the mappings to ensure that each field is correctly mapped to the appropriate data type.
  Modify Expressions: If you are using expressions, ensure that the logic is correct and that you are not mixing incompatible data types. You may need to convert data types explicitly using conversion functions (e.g., TO_NUMBER, TO_STRING, etc.).
  Debugging: Use debugging tools or logs to identify the exact point where the type mismatch occurs. This can help you pinpoint the specific field or expression causing the issue.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Flexible Data Import and expressions to understand the expected data types and how to handle them.
  Community Forums: Check SAP community forums or support channels for similar issues and solutions shared by other users.
  Data Validation: Implement data validation checks before processing to catch type mismatches early in the workflow.
  
  By following these steps, you should be able to identify and resolve the type mismatch error in your SAP environment.