We use JIRA Service Desk to support our products. Each issue in our Service Desk has a customer "Serial Number" field. We use an external tracking tool to aggregate the product's information and it displays products by Serial Number, a specific link looks like this, for example:
http://products.com/product/view/12-34-5678
Our Serial Number custom field displays this:
12-34-5678
We want to generate a clickable link directly to the external tool for a given serial number for each issue. How can this be done?