How To Fix W_CB344 - Field status "required" is supported for UI restrictions only

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 344

• Message text: Field status "required" is supported for UI restrictions only

Self-Explanatory Message

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• What is the cause and solution for SAP error message W_CB344 - Field status "required" is supported for UI restrictions only ?

  SAP Error Message:
  
  W_CB344 Field status "required" is supported for UI restrictions only
  
  Cause
  This warning message occurs when a field status is set to "required" in a context where it is not supported, specifically outside of UI (User Interface) restrictions. In SAP, the field status controls whether a field is optional, required, or suppressed. However, the "required" status is only valid and enforced in the UI layer (e.g., screens, Web Dynpro, Fiori apps).
  If you try to enforce a field as required at a lower level (such as in the database table definition, or in certain backend validations), SAP issues this warning because the "required" field status is not applicable or enforceable there.
  
  Explanation
  
  Field status "required" means the user must enter a value in the UI.
  This is a UI-level validation.
  Backend or database layers do not enforce "required" field status.
  If you configure a field as "required" in a place other than UI restrictions (e.g., in the field status group or in the data dictionary), SAP will warn that this is not supported.
  
  
  Solution
  
  
  Check where the field status "required" is set.
  
  Make sure it is only set in UI restrictions (e.g., in the field status group assigned to the transaction or screen).
  
  
  Do not set "required" field status in the data dictionary or backend validation.
  
  Instead, use other mechanisms such as:
  
  Data element properties (e.g., "No initial" flag in the data element to prevent empty values).
  Domain fixed values or check tables.
  Explicit validation logic in user exits, BAdIs, or enhancement spots.
  Input checks in the UI layer.
  
  
  
  Adjust the field status group or UI configuration to enforce the required field behavior.
  
  
  
  Related Information
  
  
  Field Status Groups:
  
  Used in financial accounting and other modules to control field behavior on screens.
  
  
  Data Element "No Initial" Flag:
  
  Can be used to enforce that a field cannot be initial (empty) at the database level.
  
  
  UI Validation:
  
  Required fields are typically enforced in screen programming (Dynpro, Web Dynpro, Fiori) or via UI annotations.
  
  
  SAP Notes and Documentation:
  
  Check SAP Notes related to field status and UI restrictions for your specific module.
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  "Required" field status set outside UI restrictions (e.g., backend or data dictionary).
  
  
  Effect
  Warning message W_CB344 issued; "required" only supported in UI layer.
  
  
  Solution
  Set "required" only in UI field status groups; use other methods for backend validation.
  
  
  Related Info
  Field status groups, data element flags, UI validation techniques, SAP Notes.
  
  
  
  
  If you provide the exact context (module, transaction, or customization step), I can help with more specific guidance.