How to get Custom Javascript (in web page form) section to work on Portal Web page

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Posted on by johnnylawson

I think I'm missing a step or something. I'd like to start to use JS on the Registration page for an event on the portal for events. I can't seem to get it to work with the process below.

Here's my process:

I grab the id of the field....

Add custom JavaScript to a form - Power Apps | Microsoft Docs - this is for advanced forms but there is a spot for Custom Javascript on the page I am working with (see screenshots below this)

Pretty sure I am grabbing the right page here - the Partial URL matches with the URL of the registration page

I then take the snippet from MS docs and modify the field to match my field from first screenshot. This doesn't seem to work after saving.

My first dive into Marketing and the integration of this with portals. Any help is super appreciated! At the end of the day I am wanting to do some pre-filling registration pages with the current user who is logged in.

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RE: How to get Custom Javascript (in web page form) section to work on Portal Web page

Hi johnnylawson,

You mentioned:this is for advanced forms but there is a spot for Custom Javascript on the page I am working with (see screenshots below this)

So you are using Advanced find in the web page, Right?

If so, you can add one advanced form step:

Then you can use js code in the advanced form step, move to 'Form Options' tab and find 'Custom Javascript' section:

You can refer the following link for moew details:

Power Apps Portal – Advanced Forms (Web Forms) and Custom JavaScript (spyglassmtg.com)