POST api/appointment/systemreserve

{
  "CFId": 1,
  "FolderAlias": "sample string 2",
  "CFPId": 3,
  "CustId": 4,
  "AppId": 5,
  "TrtId": 6,
  "LockId": 7,
  "TrtDescription": "sample string 8",
  "TrtDuration": 9,
  "TrtPrice": 10.1,
  "SaleTypeId": 11,
  "PriceListId": 12,
  "UnitPrice": 13.1,
  "DiscountPrcnt": 14.1,
  "DiscountValue": 15.1,
  "PayoutValue": 16.1,
  "ChargeDateStr": "sample string 17",
  "LeaderId": 18,
  "AssistantId": 19,
  "IsMaison": true,
  "ExtraInfo": "sample string 21",
  "AppointmentStartDateTime": "2026-03-13T07:16:17.4287103+02:00",
  "AppointmentDate": "sample string 23",
  "AppointmentStartTime": "sample string 24",
  "AppointmentEndTime": "sample string 25",
  "AppointmentTherapist": "sample string 26",
  "AppointmentRoom": "sample string 27",
  "CustomerRoom": "sample string 28",
  "CustomerName": "sample string 29",
  "CustomerSurname": "sample string 30",
  "CustomerEmail": "sample string 31",
  "CustomerPhone": "sample string 32",
  "CustomerAddress": "sample string 33",
  "CustomerLanguageId": 34,
  "CustomerTypeId": 35,
  "CustomerNotes": "sample string 36",
  "PMSProperty": "sample string 37",
  "PMSRoom": "sample string 38",
  "PMSAccount": "sample string 39",
  "PMSReservationId": "sample string 40",
  "PMSCustomerAlias": "sample string 41",
  "PMSArrival": "sample string 42",
  "PMSDeparture": "sample string 43",
  "Resource1Id": 44,
  "Resource2Id": 45,
  "Resource3Id": 46,
  "ProdDescr": "sample string 47",
  "Notes": "sample string 48",
  "BookingSourceId": 49,
  "BookingSourceActionId": 50,
  "IsLocked": true,
  "PropertyId": 52,
  "CancellationReasonId": 53,
  "CancellationMessage": "sample string 54",
  "ProductRecommendationId": 55,
  "IsCancelled": true,
  "IsCharged": true,
  "AcceptsMarketingEmails": true,
  "AcceptsOperationEmails": true,
  "IsForCouple": true,
  "ExtReference1": "sample string 61",
  "ExtReference2": "sample string 62",
  "CheckInState": 64,
  "ModifierId1": 64,
  "ModifierId2": 65,
  "ModifierId3": 66,
  "ModifierId4": 67,
  "TherapistState": 64,
  "ActualStartTimeSerial": 69,
  "ActualEndTimeSerial": 70,
  "TherapistNotes": "sample string 71",
  "TherapistDescription": "sample string 72",
  "OperationalState": 0,
  "FolderType": 0
}

<AppointmentDTO xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/Atlantis.Library.Web.Models">
  <AcceptsMarketingEmails>true</AcceptsMarketingEmails>
  <AcceptsOperationEmails>true</AcceptsOperationEmails>
  <ActualEndTimeSerial>70</ActualEndTimeSerial>
  <ActualStartTimeSerial>69</ActualStartTimeSerial>
  <AppId>5</AppId>
  <AppointmentDate>sample string 23</AppointmentDate>
  <AppointmentEndTime>sample string 25</AppointmentEndTime>
  <AppointmentRoom>sample string 27</AppointmentRoom>
  <AppointmentStartDateTime>2026-03-13T07:16:17.4287103+02:00</AppointmentStartDateTime>
  <AppointmentStartTime>sample string 24</AppointmentStartTime>
  <AppointmentTherapist>sample string 26</AppointmentTherapist>
  <AssistantId>19</AssistantId>
  <BookingSourceActionId>50</BookingSourceActionId>
  <BookingSourceId>49</BookingSourceId>
  <CFId>1</CFId>
  <CFPId>3</CFPId>
  <CancellationMessage>sample string 54</CancellationMessage>
  <CancellationReasonId>53</CancellationReasonId>
  <ChargeDateStr>sample string 17</ChargeDateStr>
  <CheckInState>64</CheckInState>
  <CustId>4</CustId>
  <CustomerAddress>sample string 33</CustomerAddress>
  <CustomerEmail>sample string 31</CustomerEmail>
  <CustomerLanguageId>34</CustomerLanguageId>
  <CustomerName>sample string 29</CustomerName>
  <CustomerNotes>sample string 36</CustomerNotes>
  <CustomerPhone>sample string 32</CustomerPhone>
  <CustomerRoom>sample string 28</CustomerRoom>
  <CustomerSurname>sample string 30</CustomerSurname>
  <CustomerTypeId>35</CustomerTypeId>
  <DiscountPrcnt>14.1</DiscountPrcnt>
  <DiscountValue>15.1</DiscountValue>
  <ExtReference1>sample string 61</ExtReference1>
  <ExtReference2>sample string 62</ExtReference2>
  <ExtraInfo>sample string 21</ExtraInfo>
  <FolderAlias>sample string 2</FolderAlias>
  <FolderType>Inhouse</FolderType>
  <IsCancelled>true</IsCancelled>
  <IsCharged>true</IsCharged>
  <IsForCouple>true</IsForCouple>
  <IsLocked>true</IsLocked>
  <IsMaison>true</IsMaison>
  <LeaderId>18</LeaderId>
  <LockId>7</LockId>
  <ModifierId1>64</ModifierId1>
  <ModifierId2>65</ModifierId2>
  <ModifierId3>66</ModifierId3>
  <ModifierId4>67</ModifierId4>
  <Notes>sample string 48</Notes>
  <OperationalState>NoState</OperationalState>
  <PMSAccount>sample string 39</PMSAccount>
  <PMSArrival>sample string 42</PMSArrival>
  <PMSCustomerAlias>sample string 41</PMSCustomerAlias>
  <PMSDeparture>sample string 43</PMSDeparture>
  <PMSProperty>sample string 37</PMSProperty>
  <PMSReservationId>sample string 40</PMSReservationId>
  <PMSRoom>sample string 38</PMSRoom>
  <PayoutValue>16.1</PayoutValue>
  <PriceListId>12</PriceListId>
  <ProdDescr>sample string 47</ProdDescr>
  <ProductRecommendationId>55</ProductRecommendationId>
  <PropertyId>52</PropertyId>
  <Resource1Id>44</Resource1Id>
  <Resource2Id>45</Resource2Id>
  <Resource3Id>46</Resource3Id>
  <SaleTypeId>11</SaleTypeId>
  <TherapistDescription>sample string 72</TherapistDescription>
  <TherapistNotes>sample string 71</TherapistNotes>
  <TherapistState>64</TherapistState>
  <TrtDescription>sample string 8</TrtDescription>
  <TrtDuration>9</TrtDuration>
  <TrtId>6</TrtId>
  <TrtPrice>10.1</TrtPrice>
  <UnitPrice>13.1</UnitPrice>
</AppointmentDTO>

Sample not available.