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Custom page embedded in modeldriven app table form is not showing

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Posted on by AM-28030931-0

I have a modeldriven app table form with a tab where i have embedded a custompage. When I deploy it to my uat environment it working fine but i prod it displaying an empty tab. It looks like the custompage is not opened for the app users - It ONLY works when I'm opening form!!. Is there some additional permissions that I need to provide to the users?

some of the code:

fetch('https://' + window.location.hostname + "/api/data/v9.2/environmentvariablevalues?$select=environmentvariablevalueid,_environmentvariabledefinitionid_value,value&$expand=EnvironmentVariableDefinitionId($select=displayname,schemaname)&$filter=EnvironmentVariableDefinitionId/schemaname eq '" + envvariable + "'", {
           method: 'GET',
            headers: {
            'Content-Type': 'application/json; charset=utf-8  ' 
            }
        }).then(response => response.json())
        .then(async (wr) => {
            //set IFrame source to app-url and add ID of record
            var appid = wr.value[0]['value'];
            document.getElementById('iframe').src = 'https://apps.powerapps.com/play/e/' + appid + '?recordId=' + id;
        });
 

Categories:

Microsoft Dataverse with Power Apps

ShowProcessPage.html

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Gabriel G. 831 Super User 2025 Season 2 on at

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Hi,

Here's the problem with embedded canvas, you need to share the app with all users using your application. You did not say that you shared the application, this is why I'm talking about it :). Users from development/UAT environments are not the same from Production environment. Maybe you can work with security group from Azure ? Otherwise, you can use 'Everyone', but it is not a secured way to do it.

About permissions, for sure, users need to have privileges on 'Canvas app' from your security roles.

I hope it helps!
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AM-28030931-0 13 on at

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Thanks @GabGadou
I have checked the permissions on the app. I have shared page with an Azure security group and provided that with security role for the dataverse tables used.

I found it - the permissions for canvas app was missing.
Cheers

Anders

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AM-28030931-0 13 on at

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It was actually not the permissions to canvas app but read access to Environment Variable Definition table that was missing.

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