If an advertiser uses Google’s phone call conversion tracking feature, how are the calls tracked to their account?

Question

Accepted Answer

The calls are tracked by a dynamically created Google forwarding number.

Answer

The calls are tracked by the conversion name for the advertiser’s store.

Answer

The calls are tracked by the phone number listed on the advertiser’s official store website.

Answer

The calls are tracked by the assigned Google Click Identifier (GCLID) set up in the advertiser’s account.