Hello and welcome to our blog! What can we do for you? Are you looking for further technical information or step-by-step instructions to our products? Or would you like to read the latest news on mscrm-addons? Please feel free to browse our blog for detailed information and to share our posts! https://www.mscrm-addons.com/Bloghttps://www.mscrm-addons.com/Blog/PostId/9471/error-statuscode-401-unauthorized-when-trying-to-access-after-deploying-a-custom-web-application-within-ms-crmActivityTools (AT),DB 4.0,DCP 4.0,GC 4.0Fri, 09 Apr 2010 11:45:00 GMT<p>The problem occurs because MS CRM is using an HttpModule for multitenancy scenarios. This http module is called with an anonymous user account. This is why it fails when trying to request, i.e. the metadata webservice.</p> <p><strong>Solution:</strong> To make it work, a new entry (<em>remove CrmAuthentication</em>) has to be specified within the <em>web.config file </em>of the specific Add-On.</p> <div><strong style="white-space: normal;">That&rsquo;s it!&nbsp;</strong><span style="white-space: normal;">We appreciate your feedback! Please share your thoughts by sending an email to&nbsp;</span><a style="white-space: normal;" href="mailto:support@mscrm-addons.com">support@mscrm-addons.com</a><span style="white-space: normal;">.</span></div>9471