Connector
A connector is a pre-built integration between two systems, maintained by a vendor, that handles the technical detail of moving data between them without custom code.
What a connector saves, and what it does not
A connector removes the build cost of an integration and, more importantly, the maintenance cost when one side changes its API. What it does not remove is the mapping decision: which field in system A corresponds to which field in system B, and what happens when the two disagree. That decision is specific to your business and no connector can make it for you.
Where connectors fall short
Pre-built connectors cover the operations their vendor decided to support. When a process depends on an object or an action outside that set, the choice is to change the process, use the API directly, or accept a partial integration. Discovering this after committing to a platform is a common and avoidable cost.
A question worth asking early
Ask who maintains the connector — the source vendor, the destination vendor, or a third party — because that determines how quickly it is fixed when it breaks.