Create add-ins for Access web apps

Important: We no longer recommend that you create and use Access web apps and databases in SharePoint. As an alternative, we recommend that you use Microsoft PowerApps to build no-code business solutions for web and mobile devices.

This article shows you how to use Visual Studio 2015 to develop an Office Add-in that targets Access web apps.

Note: For information about developing solutons for Access using VBA, see Access on MSDN.


To create an Office Add-in that targets Access web apps, you need:

  • Visual Studio 2015

  • A SharePoint Online site (included in many Office 365 subscriptions). This site must have an add-in catalog. For more information, see Set up an add-in catalog on SharePoint.

Note: Office Add-ins will work with Access web apps hosted on SharePoint Online or Office 365. The Access 2013 desktop application doesn't support Office Add-ins. Office Add-ins targeting Access web apps are supported by version 1.1 and later of Office.js.

Create a project in Visual Studio

  1. Open Visual Studio and in the menu, choose File, New, Project. The New Project dialog box will open.

  2. In the New Project dialog box, in the left hand pane, navigate to Installed, Templates, Visual C#, Office/SharePoint, Office Add-ins.

    Note:  If you don't have this template installed, see the Latest Microsoft Office Developer Tools for Visual Studio 2015 blog post for information.

  3. In the New Project dialog box, in the center pane choose Office Add-in.

  4. At the bottom of the dialog box enter a name for your Project and choose OK. This opens the Create Office Add-in dialog box.

  5. In the Create Office Add-in dialog box, choose Content and then choose Next.

  6. In the next screen of the Create Office Add-in dialog box, choose either Basic Add-in or Document Visualization Add-in, and make sure that the check box for Access is selected.

  7. When done, choose Finish. Visual Studio will create a starter project for you to base your work on.

  8. In the Solution Explorer, choose the project's Web project ( project_name>Web). In the properties pane find the entry for SSL URL. This should look something like: https://localhost:44314/. Select this URL, and copy it to your clipboard. You will need it shortly.

  9. Right click on the name of your project in Solution Explorer. In the context menu, choose Publish. This will open the Publish your add-in wizard.

  10. In the Publish your add-in wizard, select the drop-down list next to Current profile. In this drop-down list, choose new. This opens the Publish Office and SharePoint Add-ins dialog box.

  11. In this dialog box choose Create new profile, enter a recognizable name for the profile, and then choose Finish. The Publish Office and SharePoint Add-ins dialog box will close, returning you to the Publish your add-in wizard.

  12. In the wizard, choose Package the add-in. This will finalize your add-in so that it can be published to an add-in catalog in SharePoint.

  13. In the next page, for Where is your website hosted? put the URL for the host of your website. This can be the SSL URL value that you copied in step 8. Then choose Finish.

  14. In Solution Explorer, right-click the project's Manifest node (directly under the project name) and select Open Folder in File Explorer. Make a note of the path to this file. You will need this value later.

Note: You can't debug the add-in without deploying it with an Access web app.

Review the Manifest and the Home.Html file

  1. In your Visual Studio project, open the Home.html file, and find the lines that reference the office.js script library.

    <script src="" type="text/javascript"></script>

    Note: This script tag references version 1.1 (and above) of Office.js. Access uses API elements introduced in version 1.1.

  2. Open the manifest file associated with your project. This file will be named after the name of your project, and have the extension ".xml".

  3. In the manifest file, find the Hosts section and look for a Host entry.

    <Hosts> <Host Name="Database" /> </Hosts>

    Note: This is where the applications that can use the add-in are listed. Because you selected Access in the Create Office Add-in dialog box, Database is listed. If you included Excel, there is an entry for Workbook as well.

Office and SharePoint Add-ins are web based. The code for the add-in must be hosted on a web server. For this example, the web server is your development computer. The server must be running to serve the add-in for testing, which means that Visual Studio must be running the add-in at the time that you view and debug it in SharePoint.

For a user to find and use the add-in, it needs to be registered with an Add-in Catalog in SharePoint. The information that the Add-in Catalog needs is contained in the manifest file.

Note: You will need to create an Access web app to host your Office Add-in.

Publish your add-in to a SharePoint Online catalog

  1. Sign in to SharePoint Online or Office 365, and then go to the SharePoint admin center by choosing Admin in the Office 365 toolbar at the top of the page.

  2. On the SharePoint admin center page, in the link bar on the left, choose add-ins. This will take you to the add-ins view.

  3. In the center pane of the page, choose Add-in Catalog. This will take you to the Catalog page.

  4. On the Catalog page, choose Distribute Office Add-ins. This takes you to a directory page called Office Add-ins that lists all installed Office Add-ins.

  5. At the top of the Office Add-ins page, choose new add-in. This will show the Add a document dialog box.

  6. In the Add a document dialog box, choose Browse, and then go to the location of the manifest file in your Visual Studio project. If you copied the address of your manifest file earlier, you can paste it into this dialog.

  7. Choose the manifest file in your project, and choose OK. SharePoint will now add your add-in to the local SharePoint library.

Note: This procedure assumes that you have created a test site on SharePoint. If you haven't, you can do so from the Sites tab at the top of the SharePoint window. You can use an existing Access web apps if you have one available.

Create an Access web app to host your add-in

  1. Go to your test site. In the left link bar, choose Site Contents. This will take you to the Site Contents page of your test site.

  2. On the Site Contents page, choose add an add-in. This brings you to the Site Contents - Your Add-ins page.

  3. In the Site Contents - Your Add-ins page, use the search bar at the top of the page to search for Access App.

  4. You should now see a tile for Access App.

    Note: Remember that this is not your Office Add-in, it is a new Access web apps. This Access web apps will host your Office Add-in.

  5. Choosing this tile brings up the Adding an Access app dialog box. Enter a unique name for your Accessapp and choose Create. It might take a while for SharePoint to create your app. When it is finished, you will see your Accessapp listed in the Site Contents page with a new label by it.

  6. The Accessapp now requires you to open it in the desktop version of Microsoft Access 2013 and add data to it before it can be opened and viewed in SharePoint.

Add your add-in to an Access web apps

  1. Open an Access web apps.

  2. On the SharePoint tab bar, choose the gear icon in the upper left corner. A menu appears. Choose the Office Add-ins menu item. This will open the Office Add-ins dialog box.

  3. Choose the My Organization view and wait a moment for SharePoint to fill the dialog box with the Office Add-ins that are available to you.

  4. One of the add-ins in the dialog box should be the Office Add-in you registered in a previous procedure. Choose that add-in to insert it in your Access web apps. Remember that the app must be running in Visual Studio to be detected and displayed on your Access web apps page.

Debug your add-in for Office

To debug your add-in, in Internet Explorer, press F12 or choose the gear icon in the browser's tab bar (not the gear icon on the SharePoint page). This brings up the F12 debug tools provided by Internet Explorer 11. If you are using another browser, check your browser documentation to determine how to enter debug mode.

At this point you can set breakpoints, step through your JavaScript code, explore the DOM, and modify the code to confirm that your changes appear in the Office Add-in targeting Access web apps. See Using the F12 developer tools for more information.

Next steps

Download the sample Office 365: Bind and manipulate data in an Access web app to learn more about how to implement an Office Add-in that manipulates data in an Access web app.

Additional resources