How To Fix W3_TOOL057 - Enter a module pool name for the HTML template name

SAP Error Message - Details

• Message type: E = Error

• Message class: W3_TOOL - ITS: Maintenance Messages

• Message number: 057

• Message text: Enter a module pool name for the HTML template name

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• What is the cause and solution for SAP error message W3_TOOL057 - Enter a module pool name for the HTML template name ?

  SAP Error Message:
  
  W3_TOOL057 Enter a module pool name for the HTML template name
  
  Cause:
  This error occurs when you are working with Web Dynpro or BSP (Business Server Pages) applications and you attempt to specify or generate an HTML template without providing a valid module pool name. The system expects a module pool program name to be entered because the HTML template is linked to a module pool program that contains the ABAP code for the application logic.
  In other words, the error indicates that the HTML template name field is empty or invalid, and the system requires a module pool program name to proceed.
  
  When does it occur?
  
  When creating or editing an HTML template in transaction SE80 or BSP application.
  When generating or linking an HTML template to a module pool program.
  When the system expects a module pool program name but none is provided.
  
  
  Solution:
  
  
  Enter a valid module pool program name in the HTML template name field:
  
  The module pool program is an ABAP program of type "Module Pool" (type M).
  Ensure that the module pool program exists and is active.
  
  
  
  Check the HTML template name field:
  
  Make sure you are not leaving the HTML template name blank.
  The HTML template name should correspond to a valid module pool program.
  
  
  
  Create a module pool program if it does not exist:
  
  Use transaction SE80 or SE38 to create a new module pool program.
  Then link this program as the HTML template name.
  
  
  
  Verify the naming conventions:
  
  The module pool program name should follow SAP naming conventions and be consistent with your project standards.
  
  
  
  
  Additional Information:
  
  Module Pool Programs: These are ABAP programs designed to handle dialog programming and user interaction. They are often linked with screen painter screens or HTML templates in BSP applications.
  HTML Templates: In BSP or Web Dynpro, HTML templates define the layout and structure of the UI. They are often linked to module pool programs that provide the backend logic.
  Transaction SE80: Use this Object Navigator to manage programs, screens, and HTML templates.
  Related Transactions: SE80, SE38, BSP_WD_CMPWB (Web Dynpro Component Workbench).
  
  
  Summary:
  
  Error: You must enter a module pool program name when specifying an HTML template.
  Fix: Provide a valid module pool program name linked to the HTML template.
  Check: Program existence, activation, and correct naming.
  
  
  If you need further help, please provide the context in which this error occurs (e.g., transaction, program, or development step).