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How can I enable the option Use a custom form created in PowerApps (requires new list experience)?

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Posted on by PattiFszg52

I’m using PowerShell to replicate a SharePoint site to a new one, including lists, libraries, and a Power Apps customized form for the "Project List." After applying the site template, the following issues have occurred:

Problem 1: Power Apps Form Issue

The customized Power Apps form for the "Project List" in the new site still links to the old site's data source. After changing the data source to the new site, clicking "Back to SharePoint" takes me to the old site instead of the new one.

Problem 2: Power Apps Custom Form Setting Disabled

In the new site, the option to enable the "Use a custom form created in Power Apps" setting is unavailable in the list’s advanced settings, and only the "Use the default SharePoint form" option is enabled.

Any Help Would Be Appreciated!

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WarrenBelz 153,073 Most Valuable Professional on at

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Hi @PattiFszg52,

Do you have this option in List Settings > Advanced Settings ?

I have never created a SharePoint list with PowerShell, but it sounds like it has created a Classic List. You can always use the built-in SharePoint New List > From existing list and this will allow the custom form

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PattiFszg52 9 on at

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Hi @WarrenBelz,

Thank you for your response, but it seems there’s been some misunderstanding of the issue. Let me clarify:

Power Apps Form Issue: After replicating the SharePoint site using PowerShell, I am facing a situation where the customized Power Apps form for the "Project List" in the new site still points to the data source of the old site. Even after manually changing the data source to the new site, when I click "Back to SharePoint," I am redirected to the old site instead of the new one.

Power Apps Custom Form Setting Disabled: The bigger issue here is that in the new site, the option to enable the "Use a custom form created in Power Apps" is completely disabled in the list's advanced settings. The only option available is "Use the default SharePoint form." This is the part I'm struggling with. I have confirmed that the new site uses a modern SharePoint list and not a classic one, as it seems to be a prerequisite for the custom Power Apps form option to be enabled.

In the list advance settings also i have this option.

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WarrenBelz 153,073 Most Valuable Professional on at

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Hi @PattiFszg52,

As I mentioned, I have never used PowerShell to create a list, so your experience is the first I have seen of this "quirk". The only two "switches" that I know of controlling the use of a SharePoint Integrated Form are what I posted, so you may need to create the list using the standard SharePoint function I posted.

However I have seen the effect of trying to move an integrated form to another list (you cannot do it natively as some internal settings on the app still point to the old list). This video however may be of assistance.

I tend to do it the "long" way of exporting as Zip file, importing to another environment then copy and paste the pieces I need to the new list form (it does not take that long).

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PattiFszg52 9 on at

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Hi WarrenBelz,

Thank you so much for your patience and for taking the time to understand the issue.

I followed the approach you suggested, specifically exporting the Power Apps custom form as a package and importing it. However, I'm encountering an error during the import process after updating the data sources and list IDs in the JSON file of the downloaded package. The error message indicates that the app already exists on the site.

Additionally, I would like to clarify that my goal is to use the Power Apps custom form in the new site after replicating the site template from the old one. Recreating the list and adding the Power Apps custom form manually doesn't meet my requirements, as the intent behind replicating the site template is to avoid recreating the form from scratch.

I would really appreciate any further guidance on how to resolve this issue.

Thanks again for your help!

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