SCCM 2007 clients Hardware Inventory Issue Failed to process instance Error Code :80040900

Recently I was looking at Collection http://eskonr.com/2009/08/sccm-collection-report-for-hardware-inventory-not-reported-for-x-days/ to see how many clients have not reported inventory back to sccm since X days and I see quite number of computers did not reported but they do receive applications,patches etc. you know what would be the impact if Client did not report back inventory back to sccm…