diff --git a/src/libs/LocalePhoneNumber.js b/src/libs/LocalePhoneNumber.js
index dbe7e39f5941..ac85aa1dbdd0 100644
--- a/src/libs/LocalePhoneNumber.js
+++ b/src/libs/LocalePhoneNumber.js
@@ -39,6 +39,10 @@ Onyx.connect({
  * @returns {String}
  */
 function formatPhoneNumber(number) {
+    if (!number) {
+        return '';
+    }
+
     const parsedPhoneNumber = parsePhoneNumber(Str.removeSMSDomain(number));
 
     // return the string untouched if it's not a phone number
diff --git a/src/libs/OptionsListUtils.js b/src/libs/OptionsListUtils.js
index ffed87332ec2..a16d1235bae7 100644
--- a/src/libs/OptionsListUtils.js
+++ b/src/libs/OptionsListUtils.js
@@ -185,7 +185,7 @@ function getParticipantsOptions(report, personalDetails) {
         text: details.displayName,
         firstName: lodashGet(details, 'firstName', ''),
         lastName: lodashGet(details, 'lastName', ''),
-        alternateText: Str.isSMSLogin(details.login) ? LocalePhoneNumber.formatPhoneNumber(details.login) : details.login,
+        alternateText: Str.isSMSLogin(details.login || '') ? LocalePhoneNumber.formatPhoneNumber(details.login) : details.login,
         icons: [{
             source: ReportUtils.getAvatar(details.avatar, details.login),
             name: details.login,
diff --git a/src/libs/ReportUtils.js b/src/libs/ReportUtils.js
index 398cd025e598..223f4205f9ad 100644
--- a/src/libs/ReportUtils.js
+++ b/src/libs/ReportUtils.js
@@ -791,7 +791,7 @@ function getDisplayNameForParticipant(login, shouldUseShortForm = false) {
 function getDisplayNamesWithTooltips(participants, isMultipleParticipantReport) {
     return _.map(participants, (participant) => {
         const displayName = getDisplayNameForParticipant(participant.login, isMultipleParticipantReport);
-        const tooltip = Str.removeSMSDomain(participant.login);
+        const tooltip = participant.login ? Str.removeSMSDomain(participant.login) : '';
 
         let pronouns = participant.pronouns;
         if (pronouns && pronouns.startsWith(CONST.PRONOUNS.PREFIX)) {
diff --git a/src/libs/actions/PersonalDetails.js b/src/libs/actions/PersonalDetails.js
index 8e4b9e1bc564..3842f96623e6 100644
--- a/src/libs/actions/PersonalDetails.js
+++ b/src/libs/actions/PersonalDetails.js
@@ -67,7 +67,7 @@ function extractFirstAndLastNameFromAvailableDetails({
     if (firstName || lastName) {
         return {firstName: firstName || '', lastName: lastName || ''};
     }
-    if (Str.removeSMSDomain(login) === displayName) {
+    if (login && Str.removeSMSDomain(login) === displayName) {
         return {firstName: '', lastName: ''};
     }
 
diff --git a/src/pages/DetailsPage.js b/src/pages/DetailsPage.js
index 003823bc3ca8..f67ba3ddb9f1 100755
--- a/src/pages/DetailsPage.js
+++ b/src/pages/DetailsPage.js
@@ -80,7 +80,7 @@ const getPhoneNumber = (details) => {
     }
 
     // If the user has set a displayName, get the phone number from the SMS login
-    return Str.removeSMSDomain(details.login);
+    return details.login ? Str.removeSMSDomain(details.login) : '';
 };
 
 class DetailsPage extends React.PureComponent {
@@ -97,7 +97,7 @@ class DetailsPage extends React.PureComponent {
             };
         }
 
-        const isSMSLogin = Str.isSMSLogin(details.login);
+        const isSMSLogin = details.login ? Str.isSMSLogin(details.login) : false;
 
         // If we have a reportID param this means that we
         // arrived here via the ParticipantsPage and should be allowed to navigate back to it
diff --git a/src/pages/ReportParticipantsPage.js b/src/pages/ReportParticipantsPage.js
index 34189f347ef3..5ef52c49fe25 100755
--- a/src/pages/ReportParticipantsPage.js
+++ b/src/pages/ReportParticipantsPage.js
@@ -57,25 +57,27 @@ const defaultProps = {
 const getAllParticipants = (report, personalDetails) => {
     const {participants} = report;
 
-    return _.map(participants, (login) => {
-        const userLogin = Str.removeSMSDomain(login);
-        const userPersonalDetail = lodashGet(personalDetails, login, {displayName: userLogin, avatar: ''});
+    return _.chain(participants)
+        .compact()
+        .map(participants, (login) => {
+            const userLogin = Str.removeSMSDomain(login);
+            const userPersonalDetail = lodashGet(personalDetails, login, {displayName: userLogin, avatar: ''});
 
-        return ({
-            alternateText: userLogin,
-            displayName: userPersonalDetail.displayName,
-            icons: [{
-                source: ReportUtils.getAvatar(userPersonalDetail.avatar, login),
-                name: login,
-                type: CONST.ICON_TYPE_AVATAR,
-            }],
-            keyForList: userLogin,
-            login,
-            text: userPersonalDetail.displayName,
-            tooltipText: userLogin,
-            participantsList: [{login, displayName: userPersonalDetail.displayName}],
-        });
-    });
+            return ({
+                alternateText: userLogin,
+                displayName: userPersonalDetail.displayName,
+                icons: [{
+                    source: ReportUtils.getAvatar(userPersonalDetail.avatar, login),
+                    name: login,
+                    type: CONST.ICON_TYPE_AVATAR,
+                }],
+                keyForList: userLogin,
+                login,
+                text: userPersonalDetail.displayName,
+                tooltipText: userLogin,
+                participantsList: [{login, displayName: userPersonalDetail.displayName}],
+            });
+        }).value();
 };
 
 const ReportParticipantsPage = (props) => {
diff --git a/src/pages/home/report/ReportActionItemSingle.js b/src/pages/home/report/ReportActionItemSingle.js
index ed208a7db999..12030f20973f 100644
--- a/src/pages/home/report/ReportActionItemSingle.js
+++ b/src/pages/home/report/ReportActionItemSingle.js
@@ -64,10 +64,11 @@ const ReportActionItemSingle = (props) => {
     // Since the display name for a report action message is delivered with the report history as an array of fragments
     // we'll need to take the displayName from personal details and have it be in the same format for now. Eventually,
     // we should stop referring to the report history items entirely for this information.
+    const isSMSLogin = login ? Str.isSMSLogin(login) : false;
     const personArray = displayName
         ? [{
             type: 'TEXT',
-            text: Str.isSMSLogin(login) ? props.formatPhoneNumber(displayName) : displayName,
+            text: isSMSLogin ? props.formatPhoneNumber(displayName) : displayName,
         }]
         : props.action.person;