In some cases we want to create calls in TOPdesk using the incident API. If we know that a caller is registered, the callerLookup field works very nicely, also if we know that a caller is not registered, we use caller with email, dynamicName and branch.id.
But what when we don’t know whether the caller is registered or not? When an external system used by both employees and external users shall POST a call, for example? Is there a way to create a call in one POST in such cases?
