How long should I expect my Dell fleet to be fully loaded in the Device Mgt portal in TechDirect?

Currently deploying SupportAssist for Business PCs, ver. 2.4.0.39, via SCCM to all Dell hardware. Current in the TechDirect portal > Device Management > Overview I'm seeing 620 of 1280  computers.

Is there something else I need to do so they are being seen sooner in the Device Management tab in the TD portal? They are coming in very slowly < 20 per day. According to my SCCM deployment for the SupportAssist application there should be roughly 1036 ready and successfully deployed Dell computers. I'm only seeing 620 as of today.