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Add a Company Domain

Know which domain you’ll be using for Yammer Enterprise? Whether you’re upgrading an existing Basic network or creating a new one, the first step is verifying your company domain on your Office 365 account. This allows us to securely connect and sync your services.

Yammer requires a company domain, such as contoso.com, to activate the network. This means the default domain (contoso.onmicrosoft.com) you created with your Office 365 account can’t be used to activate Yammer Enterprise.

Before you begin:

  • You’ll need to have access to your DNS hosting provider or domain registrar. If you don’t know how to do this, contact your company’s IT Support for assistance.
  • Does your organization already have a Yammer network? Add that domain to Office 365 to upgrade the network to Enterprise.
  • If your organization has multiple company domains, activate using the one that hosts the majority of your employees, and add additional domains post-activation.
  • If your organization is using SharePoint Sites, be sure to activate Yammer on a different domain. For example, if your SharePoint Site is on www.contoso.com, activate Yammer using the contoso.com domain.

To add your company domain to Office 365:

  1. Log into your Office 365 Admin Center and go to Domains > Add a domain.Tip: If you don’t have a company domain, you can purchase one from a domain name registrar on the Domains page.
  2. Verify the domain that you wish to use for your Yammer network, and confirm that you own the domain by creating a record at your DNS hosting provider or domain registrar.
  3. Define how you’ll use your domain by selecting Yammer or a combination with other Office 365 services like Exchange Online or Lync Online.
  4. Update your DNS records using the provided Record Type details at your hosting provider or domain registrar to verify these services for Office 365.
  5. If this domain is your organization’s primary domain, change your default Office 365 domain from onmicrosoft.com to the company domain you just added. Go to Admin > Office 365, click your organization name in the upper-right corner, and then choose Default domain.

Read more about this process for detailed scenarios and troubleshooting here.

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