How To Fix W3_TOOL501 - Choose only templates from a theme

SAP Error Message - Details

• Message type: E = Error

• Message class: W3_TOOL - ITS: Maintenance Messages

• Message number: 501

• Message text: Choose only templates from a theme

Self-Explanatory Message

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• What is the cause and solution for SAP error message W3_TOOL501 - Choose only templates from a theme ?

  SAP Error Message:
  
  W3_TOOL501: Choose only templates from a theme
  
  Cause:
  This error occurs when you try to use or assign a template that does not belong to the currently selected theme in Web Dynpro or SAP UI5 development environments. In SAP Web Dynpro or UI5, templates are grouped under themes, and mixing templates from different themes is not allowed. The system enforces this to maintain consistency in UI design and behavior.
  
  Explanation:
  
  Themes in SAP UI5 or Web Dynpro define a consistent look and feel.
  Each theme contains a set of templates (UI components, layouts, styles).
  When you select a theme, you must only use templates that belong to that theme.
  Using a template from a different theme causes the system to raise the W3_TOOL501 error.
  
  
  Solution:
  
  Check the theme you have selected in your Web Dynpro or UI5 application.
  Verify the template you are trying to use belongs to the same theme.
  If the template is from a different theme, either:
  
  Change the template to one that belongs to the current theme, or
  Change the theme to the one that contains the desired template.
  
  
  Ensure consistency by using templates and themes that are designed to work together.
  
  
  Related Information:
  
  This error is common during UI design or when customizing Web Dynpro applications.
  SAP enforces theme-template consistency to avoid UI inconsistencies and runtime errors.
  If you are working in the SAP GUI or Web Dynpro development environment, check the theme settings in the component or application properties.
  For SAP UI5, check the manifest.json or component.js files for theme configuration.
  Refer to SAP documentation on Themes and Templates for Web Dynpro or UI5 for detailed guidance.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  W3_TOOL501: Choose only templates from a theme
  
  
  Cause
  Template used does not belong to the selected theme
  
  
  Solution
  Use templates only from the selected theme or change the theme accordingly
  
  
  Context
  Web Dynpro or SAP UI5 development environment
  
  
  
  
  If you need further help, please provide details about the environment (Web Dynpro, UI5, etc.) and the steps leading to the error.