I want to push call details to a contact from a third party calling application. So to relate contact, we have to use contactID, which is unknown in calling application. Only contact number is what it knows, which is there in CRM. Is there any way to achive it.
API i am using : http://api.hubapi.com/engagements/v1/engagements?hapikey
Associations do not have option for contact number.