We need to still be able to reference "old" lead numbers that were converted to a job.

For example, if we send a lead to a customer that is number "400," and then we convert the lead into a job, the "lead" number changes from 400 to Job number 950. Some of our contractors use the "400" as their reference for a job or payment, but when we try to search for "lead 400," Workiz cannot pick it up anymore. Workiz should be able to reference lead numbers even after they have been converted into a job.