diff --git a/app/export.go b/app/export.go
index 1401f391c7..18c11cbd52 100644
--- a/app/export.go
+++ b/app/export.go
@@ -220,7 +220,7 @@ func (a *App) buildUserChannelMemberships(userId string, teamId string) (*[]User
 
 	category := model.PREFERENCE_CATEGORY_FAVORITE_CHANNEL
 	preferences, err := a.GetPreferenceByCategoryForUser(userId, category)
-	if err != nil {
+	if err != nil && err.StatusCode != http.StatusNotFound {
 		return nil, err
 	}
 
@@ -243,8 +243,8 @@ func (a *App) buildUserNotifyProps(notifyProps model.StringMap) *UserNotifyProps
 		Desktop:          getProp(model.DESKTOP_NOTIFY_PROP),
 		DesktopSound:     getProp(model.DESKTOP_SOUND_NOTIFY_PROP),
 		Email:            getProp(model.EMAIL_NOTIFY_PROP),
-		Mobile:           getProp(model.MOBILE_NOTIFY_PROP),
-		MobilePushStatus: getProp(model.MOBILE_PUSH_STATUS_NOTIFY_PROP),
+		Mobile:           getProp(model.PUSH_NOTIFY_PROP),
+		MobilePushStatus: getProp(model.PUSH_STATUS_NOTIFY_PROP),
 		ChannelTrigger:   getProp(model.CHANNEL_MENTIONS_NOTIFY_PROP),
 		CommentsTrigger:  getProp(model.COMMENTS_NOTIFY_PROP),
 		MentionKeys:      getProp(model.MENTION_KEYS_NOTIFY_PROP),
@@ -330,7 +330,6 @@ func (a *App) BuildPostReactions(postId string) (*[]ReactionImportData, *model.A
 	var reactionsOfPost []ReactionImportData
 
 	result := <-a.Srv.Store.Reaction().GetForPost(postId, true)
-
 	if result.Err != nil {
 		return nil, result.Err
 	}
@@ -338,7 +337,12 @@ func (a *App) BuildPostReactions(postId string) (*[]ReactionImportData, *model.A
 	reactions := result.Data.([]*model.Reaction)
 
 	for _, reaction := range reactions {
-		reactionsOfPost = append(reactionsOfPost, *ImportReactionFromPost(reaction))
+		result := <-a.Srv.Store.User().Get(reaction.UserId)
+		if result.Err != nil {
+			return nil, result.Err
+		}
+		user := result.Data.(*model.User)
+		reactionsOfPost = append(reactionsOfPost, *ImportReactionFromPost(user, reaction))
 	}
 
 	return &reactionsOfPost, nil
diff --git a/app/export_converters.go b/app/export_converters.go
index 931e841365..5fcce7bd89 100644
--- a/app/export_converters.go
+++ b/app/export_converters.go
@@ -132,9 +132,9 @@ func ImportReplyFromPost(post *model.ReplyForExport) *ReplyImportData {
 	}
 }
 
-func ImportReactionFromPost(reaction *model.Reaction) *ReactionImportData {
+func ImportReactionFromPost(user *model.User, reaction *model.Reaction) *ReactionImportData {
 	return &ReactionImportData{
-		User:      &reaction.UserId,
+		User:      &user.Username,
 		EmojiName: &reaction.EmojiName,
 		CreateAt:  &reaction.CreateAt,
 	}
diff --git a/app/export_test.go b/app/export_test.go
index 3d269115bf..551e4ec0e3 100644
--- a/app/export_test.go
+++ b/app/export_test.go
@@ -18,7 +18,7 @@ func TestReactionsOfPost(t *testing.T) {
 	post.HasReactions = true
 
 	reactionObject := model.Reaction{
-		UserId:    model.NewId(),
+		UserId:    th.BasicUser.Id,
 		PostId:    post.Id,
 		EmojiName: "emoji",
 		CreateAt:  model.GetMillis(),
@@ -26,10 +26,7 @@ func TestReactionsOfPost(t *testing.T) {
 
 	th.App.SaveReactionForPost(&reactionObject)
 	reactionsOfPost, err := th.App.BuildPostReactions(post.Id)
-
-	if err != nil {
-		t.Fatal("should have reactions")
-	}
+	require.Nil(t, err)
 
 	assert.Equal(t, reactionObject.EmojiName, *(*reactionsOfPost)[0].EmojiName)
 }
@@ -40,14 +37,14 @@ func TestExportUserNotifyProps(t *testing.T) {
 	defer th.TearDown()
 
 	userNotifyProps := model.StringMap{
-		model.DESKTOP_NOTIFY_PROP:            model.USER_NOTIFY_ALL,
-		model.DESKTOP_SOUND_NOTIFY_PROP:      "true",
-		model.EMAIL_NOTIFY_PROP:              "true",
-		model.MOBILE_NOTIFY_PROP:             model.USER_NOTIFY_ALL,
-		model.MOBILE_PUSH_STATUS_NOTIFY_PROP: model.STATUS_ONLINE,
-		model.CHANNEL_MENTIONS_NOTIFY_PROP:   "true",
-		model.COMMENTS_NOTIFY_PROP:           model.COMMENTS_NOTIFY_ROOT,
-		model.MENTION_KEYS_NOTIFY_PROP:       "valid,misc",
+		model.DESKTOP_NOTIFY_PROP:          model.USER_NOTIFY_ALL,
+		model.DESKTOP_SOUND_NOTIFY_PROP:    "true",
+		model.EMAIL_NOTIFY_PROP:            "true",
+		model.PUSH_NOTIFY_PROP:             model.USER_NOTIFY_ALL,
+		model.PUSH_STATUS_NOTIFY_PROP:      model.STATUS_ONLINE,
+		model.CHANNEL_MENTIONS_NOTIFY_PROP: "true",
+		model.COMMENTS_NOTIFY_PROP:         model.COMMENTS_NOTIFY_ROOT,
+		model.MENTION_KEYS_NOTIFY_PROP:     "valid,misc",
 	}
 
 	exportNotifyProps := th.App.buildUserNotifyProps(userNotifyProps)
@@ -55,8 +52,8 @@ func TestExportUserNotifyProps(t *testing.T) {
 	require.Equal(t, userNotifyProps[model.DESKTOP_NOTIFY_PROP], *exportNotifyProps.Desktop)
 	require.Equal(t, userNotifyProps[model.DESKTOP_SOUND_NOTIFY_PROP], *exportNotifyProps.DesktopSound)
 	require.Equal(t, userNotifyProps[model.EMAIL_NOTIFY_PROP], *exportNotifyProps.Email)
-	require.Equal(t, userNotifyProps[model.MOBILE_NOTIFY_PROP], *exportNotifyProps.Mobile)
-	require.Equal(t, userNotifyProps[model.MOBILE_PUSH_STATUS_NOTIFY_PROP], *exportNotifyProps.MobilePushStatus)
+	require.Equal(t, userNotifyProps[model.PUSH_NOTIFY_PROP], *exportNotifyProps.Mobile)
+	require.Equal(t, userNotifyProps[model.PUSH_STATUS_NOTIFY_PROP], *exportNotifyProps.MobilePushStatus)
 	require.Equal(t, userNotifyProps[model.CHANNEL_MENTIONS_NOTIFY_PROP], *exportNotifyProps.ChannelTrigger)
 	require.Equal(t, userNotifyProps[model.COMMENTS_NOTIFY_PROP], *exportNotifyProps.CommentsTrigger)
 	require.Equal(t, userNotifyProps[model.MENTION_KEYS_NOTIFY_PROP], *exportNotifyProps.MentionKeys)
diff --git a/model/user.go b/model/user.go
index 48b0214c46..43caf93a69 100644
--- a/model/user.go
+++ b/model/user.go
@@ -26,8 +26,6 @@ const (
 	PUSH_NOTIFY_PROP                   = "push"
 	PUSH_STATUS_NOTIFY_PROP            = "push_status"
 	EMAIL_NOTIFY_PROP                  = "email"
-	MOBILE_NOTIFY_PROP                 = "mobile"
-	MOBILE_PUSH_STATUS_NOTIFY_PROP     = "mobile_push_status"
 	CHANNEL_MENTIONS_NOTIFY_PROP       = "channel"
 	COMMENTS_NOTIFY_PROP               = "comments"
 	MENTION_KEYS_NOTIFY_PROP           = "mention_keys"