GetConvRequest

    <GetConvRequest> ## GetConvRequest
        <c id="{conv-id}" [fetch="{fetch-1|all|{item-id}}"] [html="{want-html} (0|1)"]
              [max="{max-inlined-length} (Integer)"] [needExp="{need-can-expand} (0|1)"]> ## ConversationSpec
            (<header n="{attribute-name}" /> ## AttributeName)*
        </c>
    </GetConvRequest>

elements and attributes you can define within a <GetConvRequest> element:

GetConvResponse

    <GetConvResponse> ## GetConvResponse
        <c [id="{conv-id}"] [n="{num-msgs} (Integer)"] [total="{all-msgs} (Integer)"] [f="{flags}"] [t="{tags}"]
              [tn="{tag-names}"]> ## ConversationInfo
            (<meta [section="{section}"]> ## MailCustomMetadata
                (<a n="{key}">{value}</a> ## KeyValuePair)*
              </meta>)*
            <su>{subject} (String)</su>
            List of any of: {
                <chat [id="{msg-id}"] [i4uid="{imap-uid} (Integer)"] [cif="{X-Zimbra-Calendar-Intended-For}"]
                          [origid="{orig-id}"] [rt="{reply-type}"] [idnt="{identity-id}"] [forAcct="{draft-acct-id}"]
                          [autoSendTime="{auto-send-time} (Long)"] [sd="{date-header} (Long)"] [rd="{resent-date} (Long)"]
                          [part="{part}"] [s="{msg-size} (Long)"] [d="{msg-date} (Long)"] [l="{folder-id}"]
                          [cid="{conversation-id}"] [f="{msg-flags}"] [t="{msg-tags}"] [tn="{msg-tag-names}"]
                          [rev="{revision} (Integer)"] [md="{msg-date-metadata-changed} (Long)"]
                          [ms="{change-sequence} (Integer)"]> ## ChatMessageInfo
                    <fr>{fragment} (String)</fr>
                    (<e [a="{email-address}"] [d="{display-name}"] [p="{personal name}"] [t="{address-type}"]
                            [isGroup="{email-addr-is-group} (0|1)"] [exp="{can-expand-group-members} (0|1)"] /> ## EmailInfo)*
                    <su>{subject} (String)</su>
                    <mid>{messageIdHeader} (String)</mid>
                    <irt>{inReplyTo} (String)</irt>
                    <inv type="{appt-or-task}"> ## InviteInfo
                        (<tz id="{timezone-id}" stdoff="{timezone-std-offset} (Integer)"
                                 dayoff="{timezone-daylight-offset} (Integer)" [stdname="..."] [dayname="..."]> ## CalTZInfo
                            <standard [week="{tzonset-week} (Integer)"] [wkday="{tzonset-day-of-week} (Integer)"]
                                          mon="{tzonset-month} (Integer)" [mday="{tzonset-day-of-month} (Integer)"]
                                          hour="{tzonset-hour} (Integer)" min="{tzonset-minute} (Integer)"
                                          sec="{tzonset-second} (Integer)" /> ## TzOnsetInfo
                            <daylight ... /> ## See /c/chat/inv/tz/standard [ ## TzOnsetInfo]
                          </tz>)*
                        <comp [method="{invite-comp-method}"] [compNum="{invite-comp-num} (Integer)"]
                                  [rsvp="{rsvp} (0|1)"] [priority="{invite-comp-priority-0-9}"] [name="{invite-comp-name}"]
                                  [loc="{invite-comp-location}"] [noBlob="{no-blob-data} (0|1)"] [fba="{freebusy-actual}"]
                                  [fb="{freebusy-status}"] [transp="{transparency}"] [isOrg="{is-organizer} (0|1)"]
                                  [x_uid="{x-uid}"] [uid="{uid-for-create}"] [seq="{sequence-num} (Integer)"]
                                  [d="{invite-comp-date} (Long)"] [calItemId="{mail-item-id-of-appointment}"]
                                  [apptId="{deprecated-appt-id}"] [ciFolder="{cal-item-folder}"]
                                  [status="{invite-comp-status}"] [class="{invite-comp-class}"] [url="{invite-comp-url}"]
                                  [ex="{is-exception} (0|1)"] [ridZ="{utc-recurrence-id}"] [allDay="{is-all-day} (0|1)"]
                                  [draft="{is-draft} (0|1)"] [neverSent="{attendees-never-notified} (0|1)"]
                                  [changes="{comma-sep-changed-data}"]> ## InviteComponent
                            (<category>{categories} (String)</category>)*
                            (<comment>{comments} (String)</comment>)*
                            (<contact>{contacts} (String)</contact>)*
                            <geo [lat="{longitude}"] [lon="{longitude}"] /> ## GeoInfo
                            (<at [a="{email-address}"] [url="{url}"] [d="{friendly-name}"] [sentBy="{sent-by}"]
                                     [dir="{dir}"] [lang="{language}"] [cutype="{calendar-user-type}"] [role="{role}"]
                                     [ptst="{participation-status}"] [rsvp="{rsvp} (0|1)"] [member="{member}"]
                                     [delTo="{delegated-to}"] [delFrom="{delegated-from}"]> ## CalendarAttendee
                                (<xparam name="{xparam-name}" value="{xparam-value}" /> ## XParam)*
                              </at>)*
                            (<alarm action="{alarm-action}"> ## AlarmInfo
                                <trigger> ## AlarmTriggerInfo
                                    <abs d="{YYYYMMDDThhmmssZ}" /> ## DateAttr
                                    <rel [neg="{duration-negative} (0|1)"] [w="{duration-weeks} (Integer)"]
                                             [d="{duration-days} (Integer)"] [h="{duration-hours} (Integer)"]
                                             [m="{duration-minutes} (Integer)"] [s="{duration-seconds} (Integer)"]
                                             [related="{alarm-related}"] [count="{alarm-repeat-count} (Integer)"] /> ## DurationInfo
                                 </trigger>
                                <repeat ... /> ## See /c/chat/inv/comp/alarm/trigger/rel [ ## DurationInfo]
                                <desc>{description} (String)</desc>
                                <attach [uri="{alarm-attach-uri}"] [ct="{alarm-attach-content-type}"]>{binaryB64Data}</attach> ## CalendarAttach
                                <summary>{summary} (String)</summary>
                                (<at ... > ... </at> ## See /c/chat/inv/comp/at [ ## CalendarAttendee])*
                                (<xprop name="{xprop-name}" value="{xprop-value}"> ## XProp
                                    (<xparam name="{xparam-name}" value="{xparam-value}" /> ## See /c/chat/inv/comp/at/xparam [ ## XParam])*
                                  </xprop>)*
                              </alarm>)*
                            (<xprop name="{xprop-name}" value="{xprop-value}"> ... </xprop> ## See /c/chat/inv/comp/alarm/xprop [ ## XProp])*
                            <fr>{fragment} (String)</fr>
                            <desc>{description} (String)</desc>
                            <descHtml>{htmlDescription} (String)</descHtml>
                            <or [a="{email-address}"] [url="{url}"] [d="{friendly-name}"] [sentBy="{sent-by}"]
                                    [dir="{dir}"] [lang="{language}"]> ## CalOrganizer
                                (<xparam name="{xparam-name}" value="{xparam-value}" /> ## See /c/chat/inv/comp/at/xparam [ ## XParam])*
                             </or>
                            <recur> ## RecurrenceInfo
                                List of any of: {
                                    <add> ## AddRecurrenceInfo
                                        List of any of: {
                                            <add> ... </add> ## See /c/chat/inv/comp/recur/add [ ## AddRecurrenceInfo] # [inside itself]
                                            <exclude> ## ExcludeRecurrenceInfo
                                                List of any of: {
                                                    <add> ... </add> ## See /c/chat/inv/comp/recur/add [ ## AddRecurrenceInfo] # [inside itself]
                                                    <exclude> ... </exclude> ## See /c/chat/inv/comp/recur/add/exclude [ ## ExcludeRecurrenceInfo] # [inside itself]
                                                    <except rangeType="{range-type} (int)"
                                                                recurId="{YYMMDD[THHMMSS[Z]]}" [tz="{timezone-name}"]
                                                                [ridZ="{YYMMDDTHHMMSSZ}"]> ## ExceptionRuleInfo
                                                        <add> ... </add> ## See /c/chat/inv/comp/recur [ ## RecurrenceInfo] # [inside itself]
                                                        <exclude> ... </exclude> ## See /c/chat/inv/comp/recur [ ## RecurrenceInfo] # [inside itself]
                                                     </except>
                                                    <cancel rangeType="{range-type} (int)"
                                                                recurId="{YYMMDD[THHMMSS[Z]]}" [tz="{timezone-name}"]
                                                                [ridZ="{YYMMDDTHHMMSSZ}"] /> ## CancelRuleInfo
                                                    <dates [tz="{TZID}"]> ## SingleDates
                                                        (<dtval> ## DtVal
                                                            <s [d="{YYYYMMDD['T'HHMMSS[Z]]}"]
                                                                   [tz="{timezone-identifier}"] [u="{utc-time} (Long)"] /> ## DtTimeInfo
                                                            <e ... /> ## See /c/chat/inv/comp/recur/add/exclude/dates/dtval/s [ ## DtTimeInfo]
                                                            <dur ... /> ## See /c/chat/inv/comp/alarm/trigger/rel [ ## DurationInfo]
                                                          </dtval>)*
                                                     </dates>
                                                    <rule freq="{freq}"> ## SimpleRepeatingRule
                                                        <until d="{YYYYMMDD[ThhmmssZ]}" /> ## DateTimeStringAttr
                                                        <count num="{num} (int)" /> ## NumAttr
                                                        <interval ival="{rule-interval} (int)" /> ## IntervalRule
                                                        <bysecond seclist="{second-list}" /> ## BySecondRule
                                                        <byminute minlist="{minute-list}" /> ## ByMinuteRule
                                                        <byhour hrlist="{hour-list}" /> ## ByHourRule
                                                        <byday> ## ByDayRule
                                                            (<wkday day="{weekday}"
                                                                        [ordwk="{ord-wk-[[+]|-]num} (Integer)"] /> ## WkDay)*
                                                         </byday>
                                                        <bymonthday modaylist="{modaylist}" /> ## ByMonthDayRule
                                                        <byyearday yrdaylist="{byyearday-yrdaylist}" /> ## ByYearDayRule
                                                        <byweekno wklist="{byweekno-wklist}" /> ## ByWeekNoRule
                                                        <bymonth molist="{month-list}" /> ## ByMonthRule
                                                        <bysetpos poslist="{bysetpos-list}" /> ## BySetPosRule
                                                        <wkst day="{weekday}" /> ## WkstRule
                                                        (<rule-x-name [name="{xname-name}"] [value="{xname-value}"] /> ## XNameRule)*
                                                     </rule>
                                                }
                                             </exclude>
                                            <except ... > ... </except> ## See /c/chat/inv/comp/recur/add/exclude/except [ ## ExceptionRuleInfo]
                                            <cancel ... /> ## See /c/chat/inv/comp/recur/add/exclude/cancel [ ## CancelRuleInfo]
                                            <dates [tz="{TZID}"]> ... </dates> ## See /c/chat/inv/comp/recur/add/exclude/dates [ ## SingleDates]
                                            <rule freq="{freq}"> ... </rule> ## See /c/chat/inv/comp/recur/add/exclude/rule [ ## SimpleRepeatingRule]
                                        }
                                     </add>
                                    <exclude> ... </exclude> ## See /c/chat/inv/comp/recur/add/exclude [ ## ExcludeRecurrenceInfo]
                                    <except ... > ... </except> ## See /c/chat/inv/comp/recur/add/exclude/except [ ## ExceptionRuleInfo]
                                    <cancel ... /> ## See /c/chat/inv/comp/recur/add/exclude/cancel [ ## CancelRuleInfo]
                                    <dates [tz="{TZID}"]> ... </dates> ## See /c/chat/inv/comp/recur/add/exclude/dates [ ## SingleDates]
                                    <rule freq="{freq}"> ... </rule> ## See /c/chat/inv/comp/recur/add/exclude/rule [ ## SimpleRepeatingRule]
                                }
                             </recur>
                            <exceptId d="{DATETIME-YYYYMMDD['T'HHMMSS[Z]]}" [tz="{timezone-identifier}"]
                                          [rangeType="{range-type} (Integer)"] /> ## ExceptionRecurIdInfo
                            <s ... /> ## See /c/chat/inv/comp/recur/add/exclude/dates/dtval/s [ ## DtTimeInfo]
                            <e ... /> ## See /c/chat/inv/comp/recur/add/exclude/dates/dtval/s [ ## DtTimeInfo]
                            <dur ... /> ## See /c/chat/inv/comp/alarm/trigger/rel [ ## DurationInfo]
                         </comp>
                        <replies>
                            (<reply seq="{sequence-num} (int)" d="{dtstamp} (long)" at="{attendee}" [sentBy="{sent-by}"]
                                        [ptst="{participation-status}"] rangeType="{range-type} (int)"
                                        recurId="{YYMMDD[THHMMSS[Z]]}" [tz="{timezone-name}"] [ridZ="{YYMMDDTHHMMSSZ}"] /> ## CalendarReply)*
                        </replies>
                     </inv>
                    (<header n="{key}">{value}</header> ## See /c/meta/a [ ## KeyValuePair])*
                    List of any of: {
                        <mp part="{mime-part-name}" ct="{content-type}" [s="{size-in-bytes} (Integer)"]
                                [cd="{content-disp}"] [filename="{filename}"] [ci="{content-id}"] [cl="{content-location}"]
                                [body="{is-body} (0|1)"] [truncated="{truncated-content} (0|1)"]
                                requiresSmartLinkConversion="(Boolean)"> ## PartInfo
                            <content>{content} (String)</content>
                            (<mp> ... </mp> ## See /c/chat/mp [ ## PartInfo] # [inside itself])*
                         </mp>
                        <shr [truncated="{truncated-flag} (0|1)"]> ## ShareNotification
                            <content>{content} (String)</content>
                         </shr>
                        <dlSubs [truncated="{truncated-flag} (0|1)"]> ## DLSubscriptionNotification
                            <content>{content} (String)</content>
                         </dlSubs>
                    }
                    (<meta [section="{section}"]> ... </meta> ## See /c/meta [ ## MailCustomMetadata])*
                 </chat>
                <m [id="{msg-id}"] [i4uid="{imap-uid} (Integer)"] [cif="{X-Zimbra-Calendar-Intended-For}"]
                       [origid="{orig-id}"] [rt="{reply-type}"] [idnt="{identity-id}"] [forAcct="{draft-acct-id}"]
                       [autoSendTime="{auto-send-time} (Long)"] [sd="{date-header} (Long)"] [rd="{resent-date} (Long)"]
                       [part="{part}"] [s="{msg-size} (Long)"] [d="{msg-date} (Long)"] [l="{folder-id}"]
                       [cid="{conversation-id}"] [f="{msg-flags}"] [t="{msg-tags}"] [tn="{msg-tag-names}"]
                       [rev="{revision} (Integer)"] [md="{msg-date-metadata-changed} (Long)"]
                       [ms="{change-sequence} (Integer)"]> ## MessageInfo
                    <fr>{fragment} (String)</fr>
                    (<e ... /> ## See /c/chat/e [ ## EmailInfo])*
                    <su>{subject} (String)</su>
                    <mid>{messageIdHeader} (String)</mid>
                    <irt>{inReplyTo} (String)</irt>
                    <inv type="{appt-or-task}"> ... </inv> ## See /c/chat/inv [ ## InviteInfo]
                    (<header n="{key}">{value}</header> ## See /c/meta/a [ ## KeyValuePair])*
                    List of any of: {
                        <mp ... > ... </mp> ## See /c/chat/mp [ ## PartInfo]
                        <shr [truncated="{truncated-flag} (0|1)"]> ... </shr> ## See /c/chat/shr [ ## ShareNotification]
                        <dlSubs [truncated="{truncated-flag} (0|1)"]> ... </dlSubs> ## See /c/chat/dlSubs [ ## DLSubscriptionNotification]
                    }
                    (<meta [section="{section}"]> ... </meta> ## See /c/meta [ ## MailCustomMetadata])*
                 </m>
            }
        </c>
    </GetConvResponse>

elements and attributes you can define within a <GetConvResponse> element:

     X-FOO-HELLO;X-FOO-WORLD=world:hello
 

     <xprop name="X-FOO-HELLO" value="hello">
         <xparam name="X-FOO-WORLD" value="world"/>
     </xprop>
 

     YYYY - 4 digit year
     MM   - 2 digit month
     DD   - 2 digit day
 Optionally:
     'T' the literal char "T" then
     HH - 2 digit hour (00-23)
     MM - 2 digit minute (00-59)
     SS - 2 digit second (00-59)
     ...and finally an optional "Z" meaning that the time is UTC,
     otherwise the tz="TIMEZONE" param MUST be specified with the DATETIME
     e.g:
         20050612  June 12, 2005
         20050315T18302305Z  March 15, 2005 6:30:23.05 PM UTC
 

     YYYY - 4 digit year
     MM   - 2 digit month
     DD   - 2 digit day
 Optionally:
     'T' the literal char "T" then 
     HH - 2 digit hour (00-23)
     MM - 2 digit minute (00-59)
     SS - 2 digit second (00-59)
     ...and finally an optional "Z" meaning that the time is UTC,
     otherwise the tz="TIMEZONE" param MUST be specified with the DATETIME
     e.g:
         20050612  June 12, 2005
         20050315T18302305Z  March 15, 2005 6:30:23.05 PM UTC