<h2> "Service Tree display was blocked.Services count exceeds the limit" error while opening a Service Map from Event Management Dashboard</h2><br/><div style="overflow-x:auto"><article><div ><h3 >Issue </h3><section><ul style="list-style-position: inside;"><li>While Opening the Service Map from Event Management, getting error "<span style="background-color: #ff0000; color: #ffffff;">Service Tree display was blocked.Services count exceeds the limit</span>."</li></ul> <p style="padding-left: 80px;"><img style="border: 2px solid black; align: baseline;" src="sys_attachment.do?sys_id=34afe80ddb88b4d0471f9c41ba961978" width="780" height="344" align="baseline" border="2" /></p></section></div><div ><h3 >Cause</h3><section><ul style="list-style-position: inside;"><li>The Tree is too large</li><li>OOTB, there is a property that Limits the number of services displayed on Services Tree on maps. Once the limit reached, Services Tree will be blocked.</li><li>This is controlled using <span style="color: blue;"><strong>sa.service_tree.MAX_ITEMS_TO_DISPLAY </strong></span>property. It's a Type integer property with Default value as 7000 </li></ul></section></div><div ><h3 >Resolution</h3><section><ul style="list-style-position: inside;"><li>Increase the property value to some extent by following the below steps.</li></ul> <p style="padding-left: 80px;"><img style="border: 2px solid black; align: baseline;" src="sys_attachment.do?sys_id=bcafe80ddb88b4d0471f9c41ba961976" width="791" height="344" align="baseline" border="2" /></p> <ul style="list-style-position: inside;"><li>or if possible reduce the number of Services or restructure the tree if possible.<br /><br /><span style="background-color: #0000ff; color: #ffffff;">Note</span>: We do not recommend setting this property to a high number as it may have an impact on your performance and thus ServiceNow has set it to 7000 to avoid the same.</li></ul></section></div></article></div>