62214330_k360_Version_7_2_Release_Notes__Comments_Fix_Provided
[Enhancement] Knowledge Base Articles visible only when there are articles [Section in BizTalk360] Advanced Event Viewer Message Box (Queries) ESB Exceptions [Comments/Fix Provided] 
The KB Article icon will be visible to users only when there is an article for the error code. The user can edit the existing article and Update it. The Updated article is also visible under the ‘Knowledge Base (KB)’ in Properties.
BizTalk360 Version 7.2 Release Notes
Comments/Fix Provided