--- title: Connect to O365 Sharepoint description: "### Step 1: Create the App in Microsoft Entra - Go to: [Microsoft Entra App Registrations](https://entra.microsoft.com/#view/Microsoft_AAD_RegisteredApps/ApplicationMenuBlade) - Login as MS Office 365 admin - Click on **Applications > App registrations**: from the left hand menu, if not already selected. ![](https://seamlss.com.au/wp-content/uploads/2025/05/image-11-1024x415.png)…" url: "https://seamlss.com.au/help/sharepoint-integration-with-seamlss/" updated: "2026-09-13" category: Integrated Apps --- # Connect to O365 Sharepoint ### Step 1: Create the App in Microsoft Entra - Go to: [Microsoft Entra App Registrations](https://entra.microsoft.com/#view/Microsoft_AAD_RegisteredApps/ApplicationMenuBlade) - Login as MS Office 365 admin - Click on **Applications > App registrations**: from the left hand menu, if not already selected. ![](https://seamlss.com.au/wp-content/uploads/2025/05/image-11-1024x415.png) - Click **“+ New registration”** - Name: It can be anything, but we recommend, `Seamlss SharePoint` - Supported account type: **Accounts in this organisational directory only (Single tenant)** - Redirect URI: - Select **Web** from the dropdown - URI: `https://seamlss.app/Settings/SharePointCallback` - Click **Register** - dd ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-1.png) - Once completed, take note of the **Application (client) ID**, along with your **Directory (tenant) ID**. These will be used later. ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-2.png) --- ### Step 2: Configure Authentication Settings - Go to the app’s **Authentication** menu - Confirm Web platform is configured correctly. - This should already be configured, but otherwise click “Add a platform”, select “Web” and for Redirect URI enter: `https://seamlss.app/Settings/SharePointCallback` - Set the following for **Front-channel logout URL:**`https://seamlss.app/Settings/DisconnectFromSharePointAsync` - Under **Implicit grant and hybrid flows**, tick both boxes. - Finally, for **Supported account types** select “Accounts in this organisational directory only (*_Your org_*: Single tenant)”. - Leave Advanced settings as-is, and click **Save** ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-3-1024x909.png) --- ### Step 3: Generate a Client Secret - Navigate to **Certificates & secrets** - Under “Client secrets,” click **+ New client secret** - Description: `Seamlss SharePoint Client Secret` - Expiry: 6 to 24 months recommended - Click **Add** and **copy the VALUE immediately** (you won’t be able to retrieve it again later) ![](https://seamlss.com.au/wp-content/uploads/2025/05/image-15-1024x398.png) Return to the **[Seamlss SharePoint integration page](https://seamlss.app/Dashboard/Settings#integrations)** and paste the Client Secret into the Client Secret ID field. You can also copy and paste the Tenant ID and Application ID / Client ID at this stage if you like. [![](https://seamlss.com.au/wp-content/uploads/2025/05/image-14.png)](https://stage.seamlss.app/Dashboard/Settings#integrations) --- ### Step 4: Add Delegated API Permissions Go to **API Permissions > + Add a permission > Microsoft Graph > Delegated permissions** ![](https://seamlss.com.au/wp-content/uploads/2025/05/image-16-1024x450.png) - Add the following: *(use the search bar to find them quickly and easily)* - `Files.ReadWrite.All` - `Sites.Read.All` - `offline_access` You should see the permissions added like below (User.Read will already be added). After adding the permissions, click **Grant admin consent**: ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-4.png) The Status should then say Granted for each permission. Your Application setup is now complete. ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-5.png) --- ### Step 5: Connect in Seamlss Return to the Overview menu to copy the required fields below. ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-2.png) Now go to **Seamlss** to complete the connection: - Go to the [SharePoint integration setup](https://seamlss.app/Dashboard/Settings#integrations) section - Enter the following values: - **Directory (tenant) ID** => Tenant ID - **Application (client) ID** => Application ID / Client ID - **Client Secret** => Client Secret ID (from Step 3) *if you didn’t you will have to go back and create another* - Click **Connect to SharePoint**, follow the prompts to sign in as admin, ensuring you tick the Consent box and Accept. ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-6.png) - Once authenticated, use the **Select SharePoint Drive**button to select a site and documents folder (e.g. Business Edge Accounting > Documents) - Click the **Save Setting**s button to finish. ![](https://seamlss.com.au/wp-content/uploads/2025/05/app-setup-7.png) --- ### Notes - Connecting SharePoint will disconnect any previous OneDrive or Google Drive integration. - The Microsoft Entra app must be registered under the **same tenant** as the user’s Microsoft 365 account used for connection. - Ensure “Web” is explicitly selected when entering Redirect URIs. This is easy to miss. --- ### Troubleshooting #### Redirect URI Mismatch Ensure the redirect URI in Microsoft Entra exactly matches the one used by Seamlss: - `https://seamlss.app/Settings/SharePointCallback` If not, add it under **Authentication > Platform configurations** and save. #### Secret Errors - Ensure the **secret value** is used (not the secret ID) - If unsure, generate a new one and replace it in Seamlss #### Consent Issues - Admins must click **Grant admin consent** in the Azure portal - If it fails silently, confirm that each permission shows “Granted” next to it #### Login or Sync Fails - Clear cookies or try an incognito window - Ensure the user connecting via Seamlss belongs to the same Microsoft 365 tenant where the app was registered - Refresh the client secret or tenant/client ID values in Seamlss if they’ve changed #### What Not to Do - ❌ Don’t use **Application-type** permissions - ❌ Don’t register the app as multi-tenant - ❌ Don’t use wildcard (`*`) URIs - ❌ Don’t forget to select “Web” when configuring Redirect URIs