Knowledge Management - Add-in for Microsoft Word gives Add-in errorIssue As documented - https://docs.servicenow.com/csh?topicname=configure-domain-km-word-add-in.html&version=latest 1. Activate the Knowledge Management - Add-in for Microsoft Word plugin 2. deployed the manifest 3. Added the parent domain in value in property sn_km_word.glide.knowman.word.xframe to specify all the parent domains in the Microsoft Word Online application in which Knowledge Management - Add-in for Microsoft Word is embedded. 4.Go to word online and select the add in. 5.Add in error shows up at the right ReleaseParisCauseThe issue seems to with configuring the system property **'sn_km_word.glide.knowman.word.xframe'** Note that this property is required to be filled with all the parent domains of the addin, including the internal <iframe> urls in the Word online page and not just the URL in the address bar of the browser. This is for required security purposes. For example : if you are using sharepoint/onedrive, In general the domain URLs are in the following format:https://sitename.sharepoint.comhttps://sitename-my.sharepoint.comhttps://word-edit.officeapps.live.com Note : If following the above steps does not give you expected result , a good way to test where the issue could be is to replace the property value, with just * as its value, for testing purposes (it should not be in production),this will allow any page to embed the Knowledge word add-in page, which might cause security issues for the instance. This is why we have to specify every domain the page is embedded in, so that there will not be any security issues. If it works this way, then the issue is with the property value, else it would be something else, which servicenow support can debug further.If it works with *, it means that there is some inner domain in the page with <iframe> tag which contains the add-in, it needs to also be added to the property. ResolutionIn order to fix the issue: 1.Go to property - sn_km_word.glide.knowman.word.xframe 2.Adding these 3 Domains (replace sitename with their sharepoint name) in the property https://sitename.sharepoint.comhttps://sitename-my.sharepoint.comhttps://word-edit.officeapps.live.com 3. save record, clear instance cache. 4.Go to Microsoft word online. 5. find the knowledge management icon and click on it. 6. you will be able to see similar information as shown in below screenshot.