How To Fix WD366 - Expression '&' is not a time zone

WD366 - Overview

• Message type: E = Error

• Message class: WD - Workflow definition

• Message number: 366

• Message text: Expression '&' is not a time zone

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WD366 - Expression '&' is not a time zone ?

  SAP Error Message:
  WD366 Expression '&' is not a time zone
  
  Cause
  This error typically occurs in SAP Web Dynpro applications when a time zone value is expected but the system receives an invalid or empty expression, often represented as '&'. The '&' symbol here indicates that the time zone parameter or variable is either:
  
  Not properly initialized,
  Missing,
  Or incorrectly passed to a function or UI element that expects a valid time zone string.
  
  In other words, the application tries to interpret '&' as a time zone, which is invalid, leading to this error.
  
  When does it occur?
  
  When binding UI elements (like date/time fields) that require a time zone, but the time zone context is missing or incorrect.
  When calling functions or methods that expect a valid time zone parameter but receive an empty or placeholder value.
  When the time zone is dynamically determined but the variable is not set or is empty.
  
  
  Solution
  
  
  Check the Time Zone Value:
  
  Verify that the