How To Fix RSWADMDERR1147 - Items must have unique IDs on the page; specified in the ID attribute

SAP Error Message - Details

• Message type: E = Error

• Message class: RSWADMDERR1 - Web Application Designer 4.0 Error Messages

• Message number: 147

• Message text: Items must have unique IDs on the page; specified in the ID attribute

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSWADMDERR1147 - Items must have unique IDs on the page; specified in the ID attribute ?

  The SAP error message RSWADMDERR1147 indicates that there are multiple elements on a web page (or in a web application) that share the same ID attribute. In HTML, the ID attribute must be unique within a page, meaning that no two elements should have the same ID. This is important for proper functioning of JavaScript, CSS, and for accessibility reasons.
  Cause:
  The error typically arises from:
  
  Duplicate IDs: Two or more elements on the same page have been assigned the same ID.
  Dynamic Content Generation: If the page content is generated dynamically (e.g., through a loop or template), it may inadvertently create duplicate IDs.
  Incorrect HTML Markup: Manual coding errors or copy-pasting of elements without changing their IDs.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicate IDs:
  
  Inspect the HTML of the page using browser developer tools (right-click on the page and select "Inspect" or "Inspect Element").
  Search for the ID that is causing the issue to see where it is duplicated.
  
  
  
  Modify IDs:
  
  Ensure that each element has a unique ID. You can do this by appending a unique identifier (like a number or a descriptive suffix) to the ID.
  For example, if you have two elements with the ID item, you could change them to item1 and item2.
  
  
  
  Check Dynamic Content:
  
  If the IDs are generated dynamically, review the logic that generates these IDs to ensure they are unique. This may involve using a counter or a unique identifier from the data being processed.
  
  
  
  Validate HTML:
  
  Use an HTML validator to check for any other potential issues in your markup that could lead to similar problems.
  
  
  
  Test Changes:
  
  After making changes, test the page to ensure that the error is resolved and that the functionality of the page is intact.
  
  
  
  Related Information:
  
  HTML Specification: According to the HTML specification, the ID attribute must be unique within a document. This is crucial for JavaScript functions that rely on document.getElementById() and for CSS selectors that target elements by ID.
  Accessibility: Unique IDs are also important for accessibility tools, such as screen readers, which rely on IDs to navigate and interpret the content of a page.
  Debugging Tools: Utilize browser debugging tools to help identify and fix issues related to duplicate IDs. Tools like Chrome DevTools or Firefox Developer Edition can be very helpful.
  
  By following these steps, you should be able to resolve the RSWADMDERR1147 error and ensure that your web page adheres to best practices for HTML structure.