Visit the CustomerSource sign-in page and enter your Windows Live ID or Organization (Office 365) email and password to access the site. If you do not have access to your organization's CustomerSource account, please complete the following steps:


  1. Ask your organization's CustomerSource administrator to grant you access to the site. If you don't know your CustomerSource administrator or if your organization does not have a CustomerSource administrator, email itmbssup@microsoft.com for assistance.
  2. If you do not have a partner, email us at sales@opendoorerp.com