How To Fix WL132 - You have assigned an attribute of a multi-line element

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 132

• Message text: You have assigned an attribute of a multi-line element

What causes this issue?

The attribute &v1& which you wish to reference in the binding
definition refers to the multiline container element &v2& in the source
container.
This binding cannot be executed in a unique manner. As a result, this
attribute may not be used in this way.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WL132 - You have assigned an attribute of a multi-line element ?

  The SAP error message WL132, which states "You have assigned an attribute of a multi-line element," typically occurs in the context of SAP's Web Application Server (WAS) or when working with Web Dynpro applications. This error indicates that there is an issue with how attributes are being assigned to multi-line elements in your application.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Incorrect Attribute Assignment: You are trying to assign a single value to an attribute that is expected to hold multiple values (e.g., a multi-line text area).
  Data Type Mismatch: The data type of the attribute does not match the expected type for a multi-line element.
  Model Binding Issues: There may be issues with how the data model is bound to the UI elements, leading to incorrect assignments.
  
  Solution:
  To resolve the WL132 error, you can take the following steps:
  
  
  Check Attribute Definitions: Review the definitions of the attributes in your data model. Ensure that attributes meant for multi-line elements are defined correctly to accept multiple values.
  
  
  Review UI Element Bindings: Ensure that the UI elements (like text areas) are correctly bound to the appropriate attributes in the model. If a multi-line element is expecting a collection or a specific format, ensure that the data being assigned matches that expectation.
  
  
  Data Type Validation: Verify that the data types of the attributes in your model correspond to the expected types for the UI elements. For example, if a multi-line text area is expecting a string that can hold multiple lines, ensure that the data being assigned is formatted correctly.
  
  
  Debugging: Use debugging tools to trace the flow of data and identify where the incorrect assignment is happening. This can help you pinpoint the exact location in your code or configuration that is causing the issue.
  
  
  Consult Documentation: Refer to SAP documentation or community forums for specific guidance related to the version of SAP you are using, as there may be version-specific nuances.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Web Dynpro Documentation: Review the official SAP Web Dynpro documentation for best practices on handling multi-line elements and attributes.
  Community Forums: Engage with SAP community forums or support channels where other developers may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the WL132 error in your SAP application.