How To Fix W3_API301 - Data error: no long name entered for HTML template

SAP Error Message - Details

• Message type: E = Error

• Message class: W3_API - WAB: API Messages

• Message number: 301

• Message text: Data error: no long name entered for HTML template

What causes this issue?

Error in the HTML template data: There is no long name entered for the
HTML template.

System Response

The system cannot perform the action.

How to fix this error?

The data error must be repaired. Contact your system administrator.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message W3_API301 - Data error: no long name entered for HTML template ?

  SAP Error Message:
  
  W3_API301 Data error: no long name entered for HTML template
  
  Cause:
  This error occurs when you try to use or process an HTML template in SAP Web Application Server (Web AS) or SAP Web Dynpro, and the system expects a "long name" (a descriptive name) for the HTML template but finds it missing or empty.
  In SAP, HTML templates are often used for generating dynamic web content, emails, or forms. Each template should have a unique identifier and a descriptive long name. The long name is typically a text field that provides a meaningful description of the template.
  The error indicates that the long name field for the HTML template is either not maintained or is blank, which violates the data integrity rules of the system.
  
  When does it occur?
  
  When creating or modifying an HTML template in transaction SE80 or SE71 (SAPscript/Smart Forms).
  When uploading or importing HTML templates via tools or APIs.
  When generating output that relies on HTML templates without proper metadata.
  During runtime when the system tries to access the template metadata and finds the long name missing.
  
  
  Solution:
  
  
  Maintain the Long Name for the HTML Template:
  
  Go to the transaction or tool where the HTML template is maintained (e.g., SE80 for Web Dynpro components or SE71 for SAPscript/Smart Forms).
  Locate the HTML template in question.
  Ensure that the "Long Name" or "Description" field is filled with a meaningful text.
  Save the changes.
  
  
  
  Check Template Upload/Import Process:
  
  If the template was imported or uploaded, verify that the import file or process includes the long name.
  Re-import or correct the template metadata if necessary.
  
  
  
  Check Custom Code or API Usage:
  
  If the error occurs during runtime or in custom code, check the code that creates or references the HTML template.
  Make sure the long name is set properly before the template is saved or processed.
  
  
  
  Transport and System Consistency:
  
  If the template was transported from another system, verify that the transport included all necessary metadata.
  Re-import or adjust the template in the target system.
  
  
  
  
  Related Information:
  
  
  Transactions:
  
  SE80 (Object Navigator) — for Web Dynpro and BSP applications.
  SE71 (SAPscript) — for form templates.
  SMARTFORMS — for Smart Forms that may include HTML output.
  SICF — for maintaining Internet services that might use HTML templates.
  
  
  
  SAP Notes:
  
  Check SAP Notes related to HTML template handling or Web Dynpro template errors.
  Sometimes, patches or support packages fix issues related to template metadata.
  
  
  
  Documentation:
  
  SAP Help Portal documentation on Web Dynpro and HTML templates.
  SAP Community forums for similar issues and solutions.
  
  
  
  
  Summary:
  The error W3_API301 Data error: no long name entered for HTML template means the system expects a descriptive long name for an HTML template but it is missing. To fix it, maintain the long name in the template metadata and ensure all template-related processes include this information.
  
  If you provide more context (e.g., transaction, scenario, or code snippet), I can help with a more specific solution.