AddInvitationsItem

respondent
Type: object
Respondent information. Valid values for key [EMAIL, SMS(only if activated on the account)].
The corresponding value need to match the type. E.g.
- EMAIL: "EMAIL": "example@questback.com"
- SMS: "SMS": "+47123456789"
- propertyName
  Type: string
respondentData
Type: object

Possible to add data to the generic respondent data fields. The Field needs to exists on the quest before you can use it.
E.g. If a field named 'Department' exists on the quest then we can add "Department": "Sales" to "fieldData"
- propertyName
  Type: string