The type of message associated with the request for the start date of data reporting.The type of response message for querying the start date of data reporting. Types of spending based on payment method. The guest’s tourism tax (IFA) obligation and types of reasons for exemption. Guest’s sex. Types of accommodation units. Market segment categories. Grouping of accommodation units by night according to sales channel. Possible VAT values Response to PMS interface data transferUnique message identifier following successful synchronous validationA type describing a PMS validation errorPMS validation error aggregation type