diff --git a/.github/workflows/sanity-test.yaml b/.github/workflows/sanity-test.yaml
index 5443320d8..e722d0632 100644
--- a/.github/workflows/sanity-test.yaml
+++ b/.github/workflows/sanity-test.yaml
@@ -385,8 +385,8 @@ jobs:
         with:
           service: groups
           kind: incremental
-          backup-args: '--site "${{ vars.CORSO_M365_TEST_GROUPS_SITE_URL }}"'
-          restore-args: '--folder ${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-groups.outputs.result }}'
+          backup-args: '--group "${{ vars.CORSO_M365_TEST_TEAM_ID }}"'
+          restore-args: '--site "${{ vars.CORSO_M365_TEST_GROUPS_SITE_URL }}" --folder ${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-groups.outputs.result }}'
           restore-container: '${{ env.RESTORE_DEST_PFX }}${{ steps.new-data-creation-groups.outputs.result }}'
           log-dir: ${{ env.CORSO_LOG_DIR }}
           with-export: true
diff --git a/src/cmd/sanity_test/common/common.go b/src/cmd/sanity_test/common/common.go
index 149a6f97e..ec505dbd7 100644
--- a/src/cmd/sanity_test/common/common.go
+++ b/src/cmd/sanity_test/common/common.go
@@ -31,6 +31,7 @@ type Envs struct {
 	GroupID          string
 	SiteID           string
 	UserID           string
+	TeamSiteID       string
 }
 
 func EnvVars(ctx context.Context) Envs {
@@ -43,6 +44,7 @@ func EnvVars(ctx context.Context) Envs {
 		GroupID:          tconfig.GetM365TeamID(ctx),
 		SiteID:           tconfig.GetM365SiteID(ctx),
 		UserID:           tconfig.GetM365UserID(ctx),
+		TeamSiteID:       tconfig.GetM365TeamSiteID(ctx),
 	}
 
 	if len(os.Getenv(sanityTestUser)) > 0 {
diff --git a/src/cmd/sanity_test/export/groups.go b/src/cmd/sanity_test/export/groups.go
index 3afef0d6b..1d288c32a 100644
--- a/src/cmd/sanity_test/export/groups.go
+++ b/src/cmd/sanity_test/export/groups.go
@@ -21,7 +21,7 @@ func CheckGroupsExport(
 	// assumes we only need to sanity check the default site.
 	// should we expand this to check all sites in the group?
 	// are we backing up / restoring more than the default site?
-	drive, err := ac.Sites().GetDefaultDrive(ctx, envs.SiteID)
+	drive, err := ac.Sites().GetDefaultDrive(ctx, envs.TeamSiteID)
 	if err != nil {
 		common.Fatal(ctx, "getting the drive:", err)
 	}
diff --git a/src/cmd/sanity_test/restore/groups.go b/src/cmd/sanity_test/restore/groups.go
index 2501672c2..95d91cee7 100644
--- a/src/cmd/sanity_test/restore/groups.go
+++ b/src/cmd/sanity_test/restore/groups.go
@@ -15,7 +15,7 @@ func CheckGroupsRestoration(
 	ac api.Client,
 	envs common.Envs,
 ) {
-	drive, err := ac.Sites().GetDefaultDrive(ctx, envs.SiteID)
+	drive, err := ac.Sites().GetDefaultDrive(ctx, envs.TeamSiteID)
 	if err != nil {
 		common.Fatal(ctx, "getting site's default drive:", err)
 	}
diff --git a/src/internal/tester/tconfig/config.go b/src/internal/tester/tconfig/config.go
index 88dc40365..623dc1282 100644
--- a/src/internal/tester/tconfig/config.go
+++ b/src/internal/tester/tconfig/config.go
@@ -28,6 +28,7 @@ const (
 	TestCfgSiteID           = "m365siteid"
 	TestCfgSiteURL          = "m365siteurl"
 	TestCfgTeamID           = "m365teamid"
+	TestCfgTeamSiteID       = "m365teamsiteid"
 	TestCfgGroupID          = "m365groupid"
 	TestCfgUserID           = "m365userid"
 	TestCfgSecondaryUserID  = "secondarym365userid"
@@ -47,6 +48,7 @@ const (
 	EnvCorsoM365TestSiteID           = "CORSO_M365_TEST_SITE_ID"
 	EnvCorsoM365TestSiteURL          = "CORSO_M365_TEST_SITE_URL"
 	EnvCorsoM365TestTeamID           = "CORSO_M365_TEST_TEAM_ID"
+	EnvCorsoM365TestTeamSiteID       = "CORSO_M365_TEST_TEAM_SITE_ID"
 	EnvCorsoSecondaryM365TestTeamID  = "CORSO_SECONDARY_M365_TEST_TEAM_ID"
 	EnvCorsoM365TestGroupID          = "CORSO_M365_TEST_GROUP_ID"
 	EnvCorsoSecondaryM365TestGroupID = "CORSO_SECONDARY_M365_TEST_GROUP_ID"
@@ -165,6 +167,12 @@ func ReadTestConfig() (map[string]string, error) {
 		os.Getenv(EnvCorsoM365TestTeamID),
 		vpr.GetString(TestCfgTeamID),
 		"6f24b40d-b13d-4752-980f-f5fb9fba7aa0")
+	fallbackTo(
+		testEnv,
+		TestCfgTeamSiteID,
+		os.Getenv(EnvCorsoM365TestTeamSiteID),
+		vpr.GetString(TestCfgTeamSiteID),
+		"8df7082a-62eb-4165-97f9-ead8cf04c0d8,11810f05-e8bd-45e2-9728-92e434260750")
 	fallbackTo(
 		testEnv,
 		TestCfgSecondaryTeamID,
diff --git a/src/internal/tester/tconfig/protected_resources.go b/src/internal/tester/tconfig/protected_resources.go
index 640339158..2bf68a159 100644
--- a/src/internal/tester/tconfig/protected_resources.go
+++ b/src/internal/tester/tconfig/protected_resources.go
@@ -222,6 +222,20 @@ func GetM365TeamID(ctx context.Context) string {
 	return strings.ToLower(cfg[TestCfgTeamID])
 }
 
+// GetM365TeamSiteID returns a site ID string representing the m365TeamSiteID
+// described by either the env var CORSO_M365_TEST_TEAM_SITE_ID, the
+// corso_test.toml config file or the default value (in that order of priority).
+// The default is a last-attempt fallback that will only work on alcion's
+// testing org.
+func GetM365TeamSiteID(ctx context.Context) string {
+	cfg, err := ReadTestConfig()
+	if err != nil {
+		logger.Ctx(ctx).Error(err, "retrieving m365 team id from test configuration")
+	}
+
+	return strings.ToLower(cfg[TestCfgTeamSiteID])
+}
+
 // UnlicensedM365UserID returns an userID string representing the m365UserID
 // described by either the env var CORSO_M365_TEST_UNLICENSED_USER, the
 // corso_test.toml config file or the default value (in that order of priority).