DO you have multiple records per customerid per job?
If so here is one way...
group on the customerID number
Create a formula field to "flag" customers called "DateFlag".:
if datediff("d",{table.jobdatefield},currentdate)<731 then 1 else 0
Sum this formula at the customer group level.
Now if the group sum=0 then no orders were done in the past 2 years, if it is >0 then at least 1 order was done.
You can use that criteria to suppress groups records you don't want to show.