How To Fix SWF_BND_001091 - Data may be lost in assignment between type '&1' and '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_BND_001 - Messages for workflow binding class

• Message number: 091

• Message text: Data may be lost in assignment between type '&1' and '&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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_BND_001091 - Data may be lost in assignment between type '&1' and '&2' ?

  The SAP error message SWF_BND_001091 indicates that there is a potential data loss during an assignment between two different data types in your workflow or program. This typically occurs when you are trying to assign a value from one variable to another, and the types of these variables are not compatible, leading to a risk of losing data.
  Cause:
  
  Type Mismatch: The most common cause of this error is a mismatch between the data types of the source and target variables. For example, trying to assign a larger data type (like a string or a float) to a smaller data type (like an integer) can lead to data truncation or loss.
  Incompatible Structures: If you are working with structures or complex data types, the fields may not align correctly, leading to potential data loss.
  Implicit Conversions: Sometimes, implicit type conversions can lead to unexpected results, especially if the conversion is not handled properly.
  
  Solution:
  
  Check Data Types: Review the data types of the variables involved in the assignment. Ensure that they are compatible and that the target variable can accommodate the value being assigned.
  Explicit Conversion: If necessary, perform explicit type conversions to ensure that the data is being assigned correctly without loss. For example, if you are assigning a float to an integer, consider rounding or truncating the float before the assignment.
  Modify Data Structures: If you are dealing with structures, ensure that the fields are correctly defined and that you are assigning values to the correct fields.
  Use Type-Safe Methods: If available, use type-safe methods or functions that handle conversions and assignments more gracefully, reducing the risk of data loss.
  Review Workflow Logic: If this error occurs within a workflow, review the logic and ensure that the data flow is correctly defined and that all assignments are valid.
  
  Related Information:
  
  Debugging: Use debugging tools in SAP to step through the code and identify where the assignment is taking place. This can help you pinpoint the exact location of the error.
  Documentation: Refer to SAP documentation for the specific data types you are working with to understand their limits and compatibility.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be updates or fixes available.
  Community Forums: Engage with SAP community forums or support channels to see if others have encountered and resolved similar issues.
  
  By addressing the type mismatch and ensuring that your assignments are safe, you can resolve the SWF_BND_001091 error and prevent data loss in your SAP applications.