Initiates on-device conversion measurement given a user email address. Requires dependency
GoogleAppMeasurementOnDeviceConversion to be linked in, otherwise it is a no-op.
Initiates on-device conversion measurement given a phone number in E.164 format. Requires
dependency GoogleAppMeasurementOnDeviceConversion to be linked in, otherwise it is a no-op.
User phone number. Must be in E.164 format, which means it must be
limited to a maximum of 15 digits and must include a plus sign (+) prefix and country code
with no dashes, parentheses, or spaces.