How To Fix W_CB343 - Specify a screen only for UI restrictions

SAP Error Message - Details

• Message type: E = Error

• Message class: W_CB -

• Message number: 343

• Message text: Specify a screen only for UI restrictions

Self-Explanatory Message

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• What is the cause and solution for SAP error message W_CB343 - Specify a screen only for UI restrictions ?

  SAP Error Message:
  
  W_CB343 – Specify a screen only for UI restrictions
  
  Cause:
  This warning message typically occurs in the context of UI (User Interface) restrictions within SAP, especially when configuring or customizing screens, transactions, or user roles. The system expects that when UI restrictions are defined, a specific screen number must be specified to apply these restrictions correctly.
  In other words, the message appears because the configuration or code attempts to set UI restrictions without specifying the exact screen number to which these restrictions should apply. This leads to ambiguity, as the system cannot determine which screen the restrictions are meant for.
  
  When does it occur?
  
  During screen modifications or enhancements where UI restrictions are applied.
  When defining authorization objects or role restrictions that limit access to certain screens.
  In custom developments or user exits where screen control logic is implemented.
  While working with transaction variants or screen variants that involve UI restrictions.
  
  
  Solution:
  
  
  Specify the Screen Number:
  
  Ensure that the screen number is explicitly defined when setting UI restrictions. This can be done in the configuration or in the code where the UI restriction is applied.
  
  
  Check the Configuration:
  
  Review the transaction variant or screen variant settings to confirm that the screen number is assigned correctly.
  
  
  Review Custom Code:
  
  If the issue arises from custom developments (e.g., in user exits, BAdIs, or screen modifications), verify that the screen number parameter is passed and used properly when applying UI restrictions.
  
  
  Use Standard SAP Tools:
  
  Use transaction codes like SHD0 (Transaction Variants) or SHD1 (Transaction Recorder) to correctly define screen restrictions with the appropriate screen numbers.
  
  
  
  Related Information:
  
  Transaction Variants (SHD0): Used to create variants of transactions with screen modifications and UI restrictions.
  Authorization Objects: Some authorization objects require screen-specific restrictions.
  Screen Number: In SAP, each screen within a transaction has a unique screen number (e.g., 0100, 0200). UI restrictions must be linked to these numbers.
  SAP Notes: Check for any SAP Notes related to W_CB343 for specific patches or updates.
  Debugging: Use debugging tools to trace where the UI restriction is applied without a screen number.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  UI restriction applied without specifying screen number.
  
  
  Effect
  System cannot apply restriction properly; warning message W_CB343 appears.
  
  
  Solution
  Specify the exact screen number when defining UI restrictions.
  
  
  Tools
  SHD0, SHD1, authorization object maintenance, debugging.
  
  
  
  
  If you provide more context (e.g., transaction code, customization scenario), I can help with more specific guidance.