Appian Step-by-Step #8 Update the Summary View Interface

Question

Hi everyone, 
 I'm encountering an error while trying to display user information in a grid column inside an interface. I have attached the code and error. I would appreciate help in order to fix this. 
 a!headerContentLayout(
 contents: {
 a!columnsLayout(
 columns: {
 a!columnLayout(
 showWhen: a!isPageWidth({ "DESKTOP", "DESKTOP_WIDE" }),
 contents: {}
 ),
 a!columnLayout(
 width: "WIDE",
 contents: {
 a!sectionLayout(
 label: "Details",
 labelSize: "MEDIUM",
 labelColor: "STANDARD",
 contents: {
 a!cardLayout(
 contents: {
 a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Make",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{0dcb911d-9e37-49c4-a95d-44b535a34766}make'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Model",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{1953912e-78f9-4ef1-a4c8-c2d6266df01e}model'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Color",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{9c2524cd-18c2-4143-af5d-5466c6ca4839}color'],
 "–"
 )
 }
 )
 }
 )
 }
 ),
 a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Condition Id",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{1b7becac-b334-4a11-a73e-125c894e3e59}conditionId'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Vehicle Condition",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.relationships.{042b0138-9c4d-478d-87ba-595d92ff94a0}vehicleCondition.fields.{374df96f-5bb5-4f8b-aafe-d86f8b3b00ee-w3238aa}value'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Vehicle Category",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.relationships.{16a3ce1e-dc60-48b3-9fdc-10337ccf5762}vehicleCategory.fields.{8587ac12-bc92-4a00-bad1-20d227b29766-w3238aa}value'],
 "–"
 )
 }
 )
 }
 )
 },
 marginAbove: "STANDARD"
 ),
 a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Mileage",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{fe6422db-5170-45f6-927d-b354ecad8b86}mileage'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Year",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{122a089f-6f5f-4807-a3c3-71d49a352687}year'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Last Maintenance Date",
 value: {
 if(
 isnull(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{6805dbf6-a1d0-4d23-ba72-1c4e116244e3}lastMaintenanceDate']
 ),
 "–",
 {
 a!richTextIcon(
 icon: "calendar",
 color: "SECONDARY"
 ),
 " ",
 a!richTextItem(
 text: text(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{6805dbf6-a1d0-4d23-ba72-1c4e116244e3}lastMaintenanceDate'],
 "mmmm d, yyyy"
 )
 )
 }
 )
 }
 )
 }
 )
 },
 marginAbove: "STANDARD"
 ),
 a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Next Maintenance Date",
 value: {
 if(
 isnull(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{b9d8fcf0-cf96-4c00-b167-2f41939e8ad8}nextMaintenanceDate']
 ),
 "–",
 {
 a!richTextIcon(
 icon: "calendar",
 color: "SECONDARY"
 ),
 " ",
 a!richTextItem(
 text: text(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{b9d8fcf0-cf96-4c00-b167-2f41939e8ad8}nextMaintenanceDate'],
 "mmmm d, yyyy"
 )
 )
 }
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Image",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{eae5f3ea-0398-48ff-9903-99167fad3385}image'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Added On",
 value: {
 if(
 isnull(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{47483867-8844-4623-86a4-65939f3a77ec}addedOn']
 ),
 "–",
 {
 a!richTextIcon(
 icon: "calendar",
 color: "SECONDARY"
 ),
 " ",
 a!richTextItem(
 text: text(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{47483867-8844-4623-86a4-65939f3a77ec}addedOn'],
 "mmmm d, yyyy"
 )
 )
 }
 )
 }
 )
 }
 )
 },
 marginAbove: "STANDARD"
 ),
 a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Modified On",
 value: {
 if(
 isnull(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{5e4c437f-deed-4f31-81d3-40b228d07783}modifiedOn']
 ),
 "–",
 {
 a!richTextIcon(
 icon: "calendar",
 color: "SECONDARY"
 ),
 " ",
 a!richTextItem(
 text: text(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{5e4c437f-deed-4f31-81d3-40b228d07783}modifiedOn'],
 "mmmm d, yyyy"
 )
 )
 }
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Mileage Category",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{bc7a200f-85ff-4da1-9b43-5ff739e6a3b0}mileageCategory'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Cost Sum",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{dc2acd32-607d-4028-9fcd-963e2faabfa2}costSum'],
 "–"
 )
 }
 )
 }
 )
 },
 marginAbove: "STANDARD"
 ),
 a!columnsLayout(
 columns: {
 a!columnLayout(
 contents: {
 a!richTextDisplayField(
 label: "Count Of Maintenance Requests",
 value: {
 a!defaultValue(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{419b98fa-ef94-4b8b-80f8-8fa98d357620}countOfMaintenanceRequests'],
 "–"
 )
 }
 )
 }
 ),
 a!columnLayout(
 contents: {}
 ),
 a!columnLayout(
 contents: {}
 )
 },
 marginAbove: "STANDARD"
 )
 },
 shape: "SEMI_ROUNDED",
 padding: "STANDARD"
 )
 },
 marginBelow: "MORE"
 ),
 a!sectionLayout(
 label: "Maintenance",
 labelSize: "MEDIUM",
 labelColor: "STANDARD",
 contents: {
 a!cardLayout(
 contents: {
 a!gridField(
 label: "Maintenance",
 labelPosition: "COLLAPSED",
 data: a!recordData(
 recordType: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance',
 filters: a!queryLogicalExpression(
 operator: "AND",
 filters: {
 a!queryFilter(
 field: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{518b3b89-892a-4c42-9738-10ac6442bdc3}vehicleId',
 operator: "=",
 value: ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{15b24187-3ef9-4e28-b7f8-cce468ea2c8a}id']
 )
 },
 ignoreFiltersWithEmptyValues: true
 )
 ),
 columns: {
 a!gridColumn(
 label: "Id",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{16674937-fb62-401b-8d7d-c712865a423a}id',
 value: a!richTextDisplayField(
 value: {
 a!richTextItem(
 text: if(
 fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{16674937-fb62-401b-8d7d-c712865a423a}id'] < 100000,
 text(
 fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{16674937-fb62-401b-8d7d-c712865a423a}id'],
 "#00000"
 ),
 fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{16674937-fb62-401b-8d7d-c712865a423a}id']
 ),
 link: a!recordLink(
 recordType: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance',
 identifier: fv!identifier
 ),
 linkStyle: "STANDALONE"
 )
 }
 )
 ),
 a!gridColumn(
 label: "Vehicle Id",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{518b3b89-892a-4c42-9738-10ac6442bdc3}vehicleId',
 value: a!defaultValue(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{518b3b89-892a-4c42-9738-10ac6442bdc3}vehicleId'], "–"),
 align: "END"
 ),
 a!gridColumn(
 label: "Issue",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{f71e183c-d5fd-40d0-89b0-256727107a34}issue',
 value: a!defaultValue(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{f71e183c-d5fd-40d0-89b0-256727107a34}issue'], "–")
 ),
 a!gridColumn(
 label: "Is Scheduled",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{3b653973-6641-4f69-b4d1-1716b74ae0ac}isScheduled',
 value: if(
 isnull(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{3b653973-6641-4f69-b4d1-1716b74ae0ac}isScheduled']),
 "–",
 a!richTextDisplayField(
 value: if(
 fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{3b653973-6641-4f69-b4d1-1716b74ae0ac}isScheduled'],
 a!richTextIcon(
 icon: "check",
 altText: "Yes",
 color: "#138901"
 ),
 a!richTextIcon(
 icon: "times",
 altText: "No",
 color: "SECONDARY"
 )
 )
 )
 ),
 align: "CENTER"
 ),
 a!gridColumn(
 label: "Status",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{62f2282f-7ab4-4f11-ac51-7de33ad5b920}status',
 value: a!defaultValue(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{62f2282f-7ab4-4f11-ac51-7de33ad5b920}status'], "–")
 ),
 a!gridColumn(
 label: "Start Date",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{0186ba45-304c-4667-bd6d-b56cf99fb945}startDate',
 value: a!defaultValue(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{0186ba45-304c-4667-bd6d-b56cf99fb945}startDate'], "–"),
 align: "END"
 ),
 a!gridColumn(
 label: "End Date",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{7937fffd-8cb1-415b-8084-abd81aa71444}endDate',
 value: a!defaultValue(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{7937fffd-8cb1-415b-8084-abd81aa71444}endDate'], "–"),
 align: "END"
 ),
 a!gridColumn(
 label: "Cost",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{e0f1f119-23ac-4606-833f-a3917fc25b29}cost',
 value: a!defaultValue(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{e0f1f119-23ac-4606-833f-a3917fc25b29}cost'], "–"),
 align: "END"
 ),
 a!gridColumn(
 label: "Assigned Mechanic",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{50163102-cd7c-441e-b265-ee5bf12a8d5f}assignedMechanic',
 value: a!defaultValue(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{50163102-cd7c-441e-b265-ee5bf12a8d5f}assignedMechanic'], "–")
 ),
 a!gridColumn(
 label: "Created",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{577779d3-5fff-409d-a626-319c7af1ed2a}createdOn',
 value: a!richTextDisplayField(
 value: a!localVariables(
 local!isUserValueBlank: isnull(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{03da5ee2-094c-4424-9b49-e1c62519caa5}createdBy']),
 local!isTimeValueBlank: isnull(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{577779d3-5fff-409d-a626-319c7af1ed2a}createdOn']),
 if(
 and(
 local!isUserValueBlank,
 local!isTimeValueBlank
 ),
 "–",
 {
 if(
 local!isTimeValueBlank,
 "–",
 datetext(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{577779d3-5fff-409d-a626-319c7af1ed2a}createdOn'], "default")
 ),
 char(10),
 a!richTextItem(
 text: if(
 local!isUserValueBlank,
 "–",
 user(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{03da5ee2-094c-4424-9b49-e1c62519caa5}createdBy'], "firstName") & " " & user(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{03da5ee2-094c-4424-9b49-e1c62519caa5}createdBy'], "lastName")
 ),
 color: "SECONDARY"
 )
 }
 )
 )
 ),
 align: "START",
 width: "NARROW_PLUS"
 ),
 a!gridColumn(
 label: "Modified",
 sortField: 'recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{27785b3e-4980-4fdc-992b-d2464952b94b}modifiedOn',
 value: a!richTextDisplayField(
 value: a!localVariables(
 local!isUserValueBlank: isnull(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{cef4d25d-bec4-423a-a1ea-7dbe39ec6ab9}modifiedBy']),
 local!isTimeValueBlank: isnull(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{27785b3e-4980-4fdc-992b-d2464952b94b}modifiedOn']),
 if(
 and(
 local!isUserValueBlank,
 local!isTimeValueBlank
 ),
 "–",
 {
 if(
 local!isTimeValueBlank,
 "–",
 datetext(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{27785b3e-4980-4fdc-992b-d2464952b94b}modifiedOn'], "default")
 ),
 char(10),
 a!richTextItem(
 text: if(
 local!isUserValueBlank,
 "–",
 user(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{cef4d25d-bec4-423a-a1ea-7dbe39ec6ab9}modifiedBy'], "firstName") & " " & user(fv!row['recordType!{1772ca68-23a3-4318-af17-68207e15ae19}W3238SS Maintenance.fields.{cef4d25d-bec4-423a-a1ea-7dbe39ec6ab9}modifiedBy'], "lastName")
 ),
 color: "SECONDARY"
 )
 }
 )
 )
 ),
 align: "START",
 width: "NARROW_PLUS"
 )
 },
 pageSize: 5,
 rowHeader: 1,
 showSearchBox: true,
 showRefreshButton: true,
 borderStyle: "LIGHT",
 shadeAlternateRows: false,
 refreshAfter: "RECORD_ACTION"
 )
 },
 shape: "SEMI_ROUNDED",
 padding: "STANDARD"
 )
 },
 marginBelow: "MORE"
 )
 }
 ),
 a!columnLayout(
 width: "MEDIUM",
 contents: {
 a!sectionLayout(
 label: "Contacts",
 labelSize: "MEDIUM",
 labelColor: "STANDARD",
 contents: {
 a!cardLayout(
 contents: {
 a!sideBySideLayout(
 items: {
 a!sideBySideItem(
 width: "MINIMIZE",
 item: a!imageField(
 labelPosition: "COLLAPSED",
 size: "EXTRA_SMALL",
 style: "AVATAR",
 images: a!userImage(
 user: ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{4a8b4866-490c-424a-adc1-b3394012f653}addedBy']
 )
 )
 ),
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 if(
 a!isNullOrEmpty(ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{4a8b4866-490c-424a-adc1-b3394012f653}addedBy']),
 a!richTextItem(
 text: {
 "-"
 }
 ),
 a!richTextItem(
 text: {
 user(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{4a8b4866-490c-424a-adc1-b3394012f653}addedBy'],
 "firstName"
 ) & " " & user(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{4a8b4866-490c-424a-adc1-b3394012f653}addedBy'],
 "lastName"
 )
 },
 color: "ACCENT",
 style: {
 "STRONG"
 }
 )
 ),
 char(10),
 a!richTextItem(
 text: {
 "Added By"
 },
 color: "SECONDARY"
 )
 }
 )
 )
 },
 alignVertical: "MIDDLE"
 )
 },
 shape: "SEMI_ROUNDED",
 padding: "LESS",
 marginBelow: "STANDARD",
 link: if(
 a!isNullOrEmpty(ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{4a8b4866-490c-424a-adc1-b3394012f653}addedBy']),
 null,
 a!userRecordLink(
 user: ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{4a8b4866-490c-424a-adc1-b3394012f653}addedBy']
 )
 )
 ),
 a!cardLayout(
 contents: {
 a!sideBySideLayout(
 items: {
 a!sideBySideItem(
 width: "MINIMIZE",
 item: a!imageField(
 labelPosition: "COLLAPSED",
 size: "EXTRA_SMALL",
 style: "AVATAR",
 images: a!userImage(
 user: ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{2a22ea26-3624-4225-b0a3-c3f8e21de7e0}modifiedBy']
 )
 )
 ),
 a!sideBySideItem(
 item: a!richTextDisplayField(
 labelPosition: "COLLAPSED",
 value: {
 if(
 a!isNullOrEmpty(ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{2a22ea26-3624-4225-b0a3-c3f8e21de7e0}modifiedBy']),
 a!richTextItem(
 text: {
 "-"
 }
 ),
 a!richTextItem(
 text: {
 user(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{2a22ea26-3624-4225-b0a3-c3f8e21de7e0}modifiedBy'],
 "firstName"
 ) & " " & user(
 ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{2a22ea26-3624-4225-b0a3-c3f8e21de7e0}modifiedBy'],
 "lastName"
 )
 },
 color: "ACCENT",
 style: {
 "STRONG"
 }
 )
 ),
 char(10),
 a!richTextItem(
 text: {
 "Modified By"
 },
 color: "SECONDARY"
 )
 }
 )
 )
 },
 alignVertical: "MIDDLE"
 )
 },
 shape: "SEMI_ROUNDED",
 padding: "LESS",
 marginBelow: "STANDARD",
 link: if(
 a!isNullOrEmpty(ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{2a22ea26-3624-4225-b0a3-c3f8e21de7e0}modifiedBy']),
 null,
 a!userRecordLink(
 user: ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{2a22ea26-3624-4225-b0a3-c3f8e21de7e0}modifiedBy']
 )
 )
 )
 },
 marginBelow: "MORE"
 ),
 a!sectionLayout(
 label: "Event History",
 labelSize: "MEDIUM",
 labelColor: "STANDARD",
 contents: {
 a!cardLayout(
 contents: {
 a!eventHistoryListField(
 eventStyle: "LIST_WITH_COMMENTS",
 labelPosition: "COLLAPSED",
 refreshAfter: "RECORD_ACTION",
 commentLayout: "LIST",
 commentCardColor: "TRANSPARENT",
 pageSize: 3,
 displayUser: "IMAGE",
 showSearchBox: false,
 showReverseSortButton: false,
 eventData: a!eventData(
 recordType: 'recordType!{7e0e239c-2750-4c41-a021-e3d29f2ae6eb}W3238SS Vechicle Event History',
 user: 'recordType!{7e0e239c-2750-4c41-a021-e3d29f2ae6eb}W3238SS Vechicle Event History.fields.{165903de-2e0a-4379-8a32-f9fc2682d474}user',
 timestamp: 'recordType!{7e0e239c-2750-4c41-a021-e3d29f2ae6eb}W3238SS Vechicle Event History.fields.{d011de64-0aea-4e15-82b2-9d7cf1543962}timestamp',
 comment: 'recordType!{7e0e239c-2750-4c41-a021-e3d29f2ae6eb}W3238SS Vechicle Event History.fields.{e2f6cf08-b13d-4891-bb41-ead71f83615e}comment',
 allowUsersToComment: true,
 allowUsersToReply: false,
 baseRecordIdForComment: ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{15b24187-3ef9-4e28-b7f8-cce468ea2c8a}id'],
 eventTypeName: fv!data['recordType!{7e0e239c-2750-4c41-a021-e3d29f2ae6eb}W3238SS Vechicle Event History.relationships.{52337666-58cd-4480-bfb8-1c354fd72d08}eventType.fields.{f85bd467-d369-4d46-beed-f6ff214bc0a8}eventName'],
 filters: a!queryFilter(
 field: 'recordType!{7e0e239c-2750-4c41-a021-e3d29f2ae6eb}W3238SS Vechicle Event History.fields.{e3ea25b0-5b42-4843-8b5a-16025f3eeb79}recordId',
 operator: "=",
 value: ri!record['recordType!{9378bb35-5e28-4771-9002-911705d85f0c}W3238SS Vechicle.fields.{15b24187-3ef9-4e28-b7f8-cce468ea2c8a}id']
 )
 )
 )
 },
 shape: "SEMI_ROUNDED",
 padding: "LESS"
 )
 },
 marginBelow: "MORE"
 )
 }
 ),
 a!columnLayout(
 showWhen: a!isPageWidth({ "DESKTOP", "DESKTOP_WIDE" }),
 contents: {}
 )
 },
 marginAbove: "MORE",
 spacing: "SPARSE",
 stackWhen: {
 "TABLET_PORTRAIT",
 "PHONE"
 }
 )
 },
 backgroundColor: "#fbfbfb"
)

Varun Teja Gurrapu · Answer

Hi sairas294611 ,

The username in the field isn't present in the system only. That's the reason it returned InvalidUserException.

Kindly Recheck whether the user is in system, if not present give any Username as default value to handle this exception.