How To Fix SWF_BND_001104 - Conversion error for assignment of value from '&1' to '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_BND_001 - Messages for workflow binding class

• Message number: 104

• Message text: Conversion error for assignment of value from '&1' to '&2'

What causes this issue?

In the data instruction 'Assignment of expression &V1& to the
expression &V2&', the value of the first expression (&V1&) could be
determined, but conversion to the format of the other expression (&V2&)
failed. This can be due to the following:
Incompatible value for a data format entered (for example, character
string contains letters although the target field can only receive
numbers)
Incompatible structure definitions
Non-assignment compatible object types

System Response

The binding operation could not be performed.

How to fix this error?

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

INCLUDE WF_BINDING_OPTIONAL 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 SWF_BND_001104 - Conversion error for assignment of value from '&1' to '&2' ?

  The SAP error message SWF_BND_001104 indicates a conversion error that occurs when there is an attempt to assign a value from one data type to another, and the conversion is not possible. This typically happens in the context of workflow bindings or when data types do not match between the source and target variables.
  Cause:
  
  Data Type Mismatch: The most common cause of this error is that the data types of the source and target variables are incompatible. For example, trying to assign a string value to a numeric variable or vice versa.
  Incorrect Workflow Configuration: The workflow might be incorrectly configured, leading to an attempt to bind incompatible data types.
  Null or Empty Values: If the source variable is null or empty, and the target variable expects a value of a specific type, this can also lead to conversion errors.
  Custom Code Issues: If there is custom code involved in the workflow, it may not handle data types correctly.
  
  Solution:
  
  Check Data Types: Review the data types of both the source and target variables. Ensure that they are compatible. You can do this by checking the definitions in the workflow or the relevant ABAP code.
  Modify Workflow Bindings: If the workflow bindings are incorrect, modify them to ensure that the correct data types are being used. This may involve changing the variable types or adjusting the workflow logic.
  Handle Null Values: Implement checks to handle null or empty values before assignment. This can prevent conversion errors when the source variable does not contain a valid value.
  Debugging: Use debugging tools to trace the workflow execution and identify where the conversion error occurs. This can help pinpoint the exact location and cause of the issue.
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance related to the workflow you are working with, as there may be known issues or solutions.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Workflow Logs: Review workflow logs for additional context around the error. This can provide insights into what data was being processed at the time of the error.
  Data Dictionary: Use the Data Dictionary (SE11) to check the definitions of the data types involved in the assignment to ensure they are as expected.
  
  By following these steps, you should be able to identify and resolve the cause of the SWF_BND_001104 error in your SAP environment.