This is where bolted on CRM sucks compared to integrated CRM.
In an integrated solution you might make or sell stuff, might dispatch installers to install, and everything made/sold is serialized. When a customer calls with an issue, whether its 'phone support/help desk' or dispatch a technician to repair, all the history of the item, from exactly what components went into making it, all past help desk calls, service calls, transfers from one owner to another etc are all maintained in 'one version of the truth.
This was always my bane with slx which didn't handle field service. If the client had jobops or automated service, that could handle the field service but couldn't take a handoff when the whole incident started with a phone call attempt to repair remotely.
You can even see the lifetime profitability of an item from manufacture, service contracts, service call costs etc. This is what Epicor's all built on one technology approach can do.