Power Platform Community Forum Thread Details

Hi Community,

I hope someone may have some suggestions to the following issue. I have a Power Automate flow to provision new teams in MS Teams, and there is a requirement to add PowerApps as a tab and connect it to a specific app.

This is done using this endpoint (via a custom connector):

https://graph.microsoft.com/v1.0/teams/{teamId}/channels/{ChannelId}/tabs

Payload:

{
  "displayName": "PowerApps as App tab",
  "teamsApp@odata.bind": "https://graph.microsoft.com/beta/appCatalogs/teamsApps/{PowerAppAppID}",
  "configuration": {
    "entityId": "/providers/Microsoft.PowerApps/apps/{MyAppId}",
    "contentUrl": "https://apps.powerapps.com/play/providers/Microsoft.PowerApps/apps/{MyAppId}?source=teamstab&locale={locale}",
    "websiteUrl": "https://apps.powerapps.com/play/providers/Microsoft.PowerApps/apps/{MyAppId}?source=teamsopenwebsite"
  }
}

I am able to embed this into a channel where I have previously added the PowerApps app in a tab to test things.

However, when I try using the above to embed the app in a newly provisioned team, I get this error:

"App id {PowerAppAppID} needs to be installed to the scope {MyAppId}:{ChannelId} and be in an unblocked state to install/update a tab",

Does anyone have any workaround for this as I am trying to minimise/remove manual steps from this process.

Categories:

Error handling

The error message "App id {PowerAppAppID} needs to be installed to the scope {MyAppId}:{ChannelId} and be in an unblocked state to install/update a tab" indicates that the Power Apps app must be pre-installed in the team before you can add it as a tab.

Since you’re provisioning new teams programmatically, you need to install the Power Apps app first before adding the tab. Here's how you can do it:

Solution: Install the Power Apps App to the Team First

Before adding the tab, you must install the Power Apps application in the team. You can do this via Microsoft Graph API using the following steps:

Step 1: Install the Power Apps App in the Team

Use the Graph API to install the Power Apps app in the team before attempting to add the tab.

POST Request

Payload

Replace {PowerAppsAppId} with the Teams App ID for Power Apps.
This step ensures the Power Apps app is installed in the team.

Step 2: Wait for Installation to Complete

After installing the app, you must wait a few seconds before adding the tab. You can do this by:

Adding a Delay action in Power Automate (5-10 seconds).
Polling the team’s installed apps to confirm installation.

To verify installation, use:

Check if Power Apps appears in the response.

Step 3: Add the Power Apps Tab

Once the Power Apps app is installed, you can use your existing POST request to add the tab.

Make sure the payload contains:

The correct Power App ID (MyAppId).
The correct team and channel IDs.

Final Approach in Power Automate

Create a Power Automate flow that:
- Provisions the team.
- Installs the Power Apps app (Step 1).
- Waits for installation (Step 2).
- Adds the Power Apps tab (Step 3).
Use a Custom Connector for the Graph API requests.