How To Fix WER_UI031 - Data element field not allowed.

SAP Error Message - Details

• Message type: E = Error

• Message class: WER_UI - UI related messages

• Message number: 031

• Message text: Data element field not allowed.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WER_UI031 - Data element field not allowed. ?

  The SAP error message WER_UI031: Data element field not allowed typically occurs in the context of SAP Workflow or when working with data elements in the ABAP Dictionary, especially when defining or using data elements in certain UI or workflow-related configurations.
  
  Cause
  
  The error "Data element field not allowed" indicates that a particular data element or field is not permitted in the current context.
  This often happens when you try to use a data element or field in a workflow container, task, or UI element where it is not supported.
  For example, in SAP Workflow, when defining container elements or binding parameters, certain data elements or field types are not allowed because they cannot be processed or displayed properly.
  It can also occur if the data element is of a type that is incompatible with the expected input or output parameter type in the workflow or UI configuration.
  
  
  Solution
  
  
  Check the Data Element Type:
  
  Verify the data element you are trying to use.
  Go to transaction SE11 (Data Dictionary) and check the data element's domain and type.
  Ensure that the data element is of a simple type (e.g., CHAR, NUMC, INT) and not a complex or structured type that is not allowed in the current context.
  
  
  
  Use Allowed Data Elements:
  
  Replace the disallowed data element with one that is permitted.
  For workflow container elements, use elementary data types or data elements that are supported by the workflow engine.
  
  
  
  Adjust Workflow Container or UI Configuration:
  
  If the error occurs in workflow container element definition, check the container element's data type.
  Use transaction PFTC (Workflow Task Maintenance) or SWDD (Workflow Builder) to review and correct the container element data types.
  
  
  
  Check for Field Catalog or UI Configuration:
  
  If the error occurs in a UI context (e.g., ALV grid or Dynpro), ensure that the field catalog or screen element does not reference a disallowed data element.
  Adjust the field catalog or screen element to use allowed data elements.
  
  
  
  Consult SAP Notes:
  
  Sometimes, this error can be related to specific SAP versions or patches.
  Search the SAP Support Portal for notes related to message WER_UI031 for any known issues or patches.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SE11 - ABAP Dictionary (to check data elements)
  SWDD - Workflow Builder
  PFTC - Workflow Task Maintenance
  SE80 - Object Navigator (to check programs, classes, and interfaces)
  
  
  
  SAP Workflow:
  
  Workflow container elements must be of supported data types.
  Complex or deep structures may not be allowed directly; consider flattening or using elementary types.
  
  
  
  SAP UI Development:
  
  UI elements and field catalogs require compatible data elements.
  Data elements with incompatible domains or types can cause this error.
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WER_UI031: Data element field not allowed
  
  
  Cause
  Use of a data element or field not permitted in the current workflow/UI context
  
  
  Solution
  Use allowed data elements; check and correct data element types in workflow/UI config
  
  
  Tools
  SE11, SWDD, PFTC, SE80
  
  
  Notes
  Check SAP Notes for version-specific issues
  
  
  
  
  If you provide the exact scenario or transaction where this error occurs, I can help with more specific guidance.