How to show items with null values

In our business each customer has a custom price profile with a negotiated price for each item purchased.  Each time they order, if a price is listed in thier profile for that item, it overrides the standard retail price.

The current report illustrates all items listed in the profile that have NOT been ordered in the last 365 days.  We then delete these from the profile to keep it accurate.  The problem is that we have some items listed in the profile that have NEVER been ordered.  Due to the coding of the report, these do not show up as the only ones listed on the report are those with max invoice dates > 365 days.  Here is some code used;

Select criteria;  
Maximum ({SalesOrder.OpenDate}, {SalesOrderItem.ItemNmbr})<currentdate-365
{@NoCustom} = "Has Custom"

the @NoCustom is a formula created to ID those items that have profile price listed;
if IsNull({CustomerPrice.Price})then "Need Custom" else "Has Custom"

Using this, we show items that have custom profile price with last sale date of 365+ days.  How do I add items that have NO sales to this report?  Start Free Trial