How To Fix WZ554 - Favorites: Invalid stack operation '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: WZ - Workflow: Model objects

• Message number: 554

• Message text: Favorites: Invalid stack operation '&'

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.

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• What is the cause and solution for SAP error message WZ554 - Favorites: Invalid stack operation '&' ?

  SAP Error Message:
  
  WZ554 Favorites: Invalid stack operation '&'
  
  Cause
  This error occurs when there is an invalid operation on the Favorites stack in SAP GUI. The Favorites functionality in SAP allows users to save frequently used transactions, reports, or URLs for quick access. Internally, SAP manages these favorites using a stack-like structure.
  The message Invalid stack operation '&' indicates that an unexpected or unsupported operation was attempted on this stack. The placeholder & is replaced by the actual operation code or character that caused the problem.
  Common causes include:
  
  Corruption or inconsistency in the Favorites data stored in the SAP GUI or user profile.
  A bug or glitch in the SAP GUI version being used.
  Manual manipulation or incorrect import/export of favorites.
  Issues arising after SAP GUI upgrade or patch.
  Problems with the local SAP GUI cache or user-specific settings.
  
  
  Solution
  
  
  Clear or Reset Favorites:
  
  Try removing or resetting the Favorites list to clear any corrupted entries.
  You can do this by deleting the favorites file or resetting favorites in SAP GUI options.
  
  
  
  Delete SAP GUI Cache:
  
  Close SAP GUI.
  Navigate to the SAP GUI cache directory (usually under %APPDATA%\SAP\Common or %USERPROFILE%\AppData\Roaming\SAP\Common).
  Delete or rename the cache files related to favorites.
  
  
  
  Check SAP GUI Version:
  
  Ensure you are using the latest SAP GUI version or a version recommended by your BASIS team.
  If the problem started after an upgrade, consider rolling back or applying patches.
  
  
  
  Recreate Favorites:
  
  If possible, export your favorites, clear them, and then re-import or manually recreate them.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to message WZ554 or favorites stack issues.
  If the problem persists, raise a support ticket with SAP, providing details of the error and environment.
  
  
  
  
  Related Information
  
  Transaction: Favorites management is typically done via the SAP GUI interface, not a transaction code.
  SAP GUI: The error is related to the SAP GUI client, not the backend system.
  User Profile: Favorites are stored per user, so the issue is user-specific.
  SAP Notes: Check SAP Support Portal for notes on WZ554 or favorites stack errors.
  SAP GUI Logs: Review SAP GUI logs for more detailed error information.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WZ554 Favorites: Invalid stack operation '&'
  
  
  Cause
  Corrupted or invalid operation on favorites stack in SAP GUI
  
  
  Solution
  Clear/reset favorites, delete SAP GUI cache, update SAP GUI, recreate favorites
  
  
  Related Info
  User-specific issue, SAP GUI client related, check SAP Notes
  
  
  
  
  If you need step-by-step instructions on clearing favorites or deleting cache, please let me know!