diff --git a/.github/workflows/tf-acc-test.yaml b/.github/workflows/tf-acc-test.yaml
index 164d384e..a8e6a53f 100644
--- a/.github/workflows/tf-acc-test.yaml
+++ b/.github/workflows/tf-acc-test.yaml
@@ -17,7 +17,7 @@ jobs:
         run: make project-tools
       - name: Run tests
         run: |
-          make test-acceptance-tf TF_ACC_PROJECT_ID=$${{ secrets.TF_ACC_PROJECT_ID }} TF_ACC_ORGANIZATION_ID=$${{ secrets.TF_ACC_ORGANIZATION_ID }}
+          make test-acceptance-tf TF_ACC_PROJECT_ID=$${{ secrets.TF_ACC_PROJECT_ID }} TF_ACC_ORGANIZATION_ID=$${{ secrets.TF_ACC_ORGANIZATION_ID }} TF_ACC_REGION="eu01"
         env:
           STACKIT_SERVICE_ACCOUNT_TOKEN: ${{ secrets.TF_ACC_SERVICE_ACCOUNT_TOKEN }}
           TF_ACC_TEST_PROJECT_SERVICE_ACCOUNT_EMAIL: ${{ secrets.TF_ACC_TEST_PROJECT_SERVICE_ACCOUNT_EMAIL }}
diff --git a/stackit/internal/services/postgresflex/postgresflex_acc_test.go b/stackit/internal/services/postgresflex/postgresflex_acc_test.go
index 27dda5bd..122633b3 100644
--- a/stackit/internal/services/postgresflex/postgresflex_acc_test.go
+++ b/stackit/internal/services/postgresflex/postgresflex_acc_test.go
@@ -106,14 +106,13 @@ func configResources(backupSchedule string, region *string) string {
 }
 
 func TestAccPostgresFlexFlexResource(t *testing.T) {
-	testRegion := utils.Ptr("eu01")
 	resource.Test(t, resource.TestCase{
 		ProtoV6ProviderFactories: testutil.TestAccProtoV6ProviderFactories,
 		CheckDestroy:             testAccCheckPostgresFlexDestroy,
 		Steps: []resource.TestStep{
 			// Creation
 			{
-				Config: configResources(instanceResource["backup_schedule"], testRegion),
+				Config: configResources(instanceResource["backup_schedule"], &testutil.Region),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					// Instance
 					resource.TestCheckResourceAttr("stackit_postgresflex_instance.instance", "project_id", instanceResource["project_id"]),
@@ -130,7 +129,7 @@ func TestAccPostgresFlexFlexResource(t *testing.T) {
 					resource.TestCheckResourceAttr("stackit_postgresflex_instance.instance", "storage.class", instanceResource["storage_class"]),
 					resource.TestCheckResourceAttr("stackit_postgresflex_instance.instance", "storage.size", instanceResource["storage_size"]),
 					resource.TestCheckResourceAttr("stackit_postgresflex_instance.instance", "version", instanceResource["version"]),
-					resource.TestCheckResourceAttr("stackit_postgresflex_instance.instance", "region", *testRegion),
+					resource.TestCheckResourceAttr("stackit_postgresflex_instance.instance", "region", testutil.Region),
 
 					// User
 					resource.TestCheckResourceAttrPair(
@@ -169,7 +168,7 @@ func TestAccPostgresFlexFlexResource(t *testing.T) {
 						project_id     = stackit_postgresflex_instance.instance.project_id
 						instance_id    = stackit_postgresflex_instance.instance.instance_id
 					}
-					
+
 					data "stackit_postgresflex_user" "user" {
 						project_id     = stackit_postgresflex_instance.instance.project_id
 						instance_id    = stackit_postgresflex_instance.instance.instance_id
@@ -341,7 +340,7 @@ func testAccCheckPostgresFlexDestroy(s *terraform.State) error {
 			continue
 		}
 		// instance terraform ID: = "[project_id],[region],[instance_id]"
-		instanceId := strings.Split(rs.Primary.ID, core.Separator)[1]
+		instanceId := strings.Split(rs.Primary.ID, core.Separator)[2]
 		instancesToDestroy = append(instancesToDestroy, instanceId)
 	}
 
@@ -356,7 +355,7 @@ func testAccCheckPostgresFlexDestroy(s *terraform.State) error {
 			continue
 		}
 		if utils.Contains(instancesToDestroy, *items[i].Id) {
-			err := client.DeleteInstanceExecute(ctx, testutil.ProjectId, testutil.Region, *items[i].Id)
+			err := client.ForceDeleteInstanceExecute(ctx, testutil.ProjectId, testutil.Region, *items[i].Id)
 			if err != nil {
 				return fmt.Errorf("deleting instance %s during CheckDestroy: %w", *items[i].Id, err)
 			}
@@ -364,10 +363,6 @@ func testAccCheckPostgresFlexDestroy(s *terraform.State) error {
 			if err != nil {
 				return fmt.Errorf("deleting instance %s during CheckDestroy: waiting for deletion %w", *items[i].Id, err)
 			}
-			err = client.ForceDeleteInstanceExecute(ctx, testutil.ProjectId, testutil.Region, *items[i].Id)
-			if err != nil {
-				return fmt.Errorf("force deleting instance %s during CheckDestroy: %w", *items[i].Id, err)
-			}
 		}
 	}
 	return nil
diff --git a/stackit/internal/services/serverupdate/serverupdate_acc_test.go b/stackit/internal/services/serverupdate/serverupdate_acc_test.go
index f1a41273..137df13b 100644
--- a/stackit/internal/services/serverupdate/serverupdate_acc_test.go
+++ b/stackit/internal/services/serverupdate/serverupdate_acc_test.go
@@ -59,7 +59,6 @@ func TestAccServerUpdateScheduleResource(t *testing.T) {
 		fmt.Println("TF_ACC_SERVER_ID not set, skipping test")
 		return
 	}
-	testRegion := utils.Ptr("eu01")
 	var invalidMaintenanceWindow int64 = 0
 	var validMaintenanceWindow int64 = 15
 	var updatedMaintenanceWindow int64 = 8
@@ -69,12 +68,12 @@ func TestAccServerUpdateScheduleResource(t *testing.T) {
 		Steps: []resource.TestStep{
 			// Creation fail
 			{
-				Config:      resourceConfig(invalidMaintenanceWindow, testRegion),
+				Config:      resourceConfig(invalidMaintenanceWindow, &testutil.Region),
 				ExpectError: regexp.MustCompile(`.*maintenance_window value must be at least 1*`),
 			},
 			// Creation
 			{
-				Config: resourceConfig(validMaintenanceWindow, testRegion),
+				Config: resourceConfig(validMaintenanceWindow, &testutil.Region),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					// Update schedule data
 					resource.TestCheckResourceAttr("stackit_server_update_schedule.test_schedule", "project_id", serverUpdateScheduleResource["project_id"]),
@@ -84,7 +83,7 @@ func TestAccServerUpdateScheduleResource(t *testing.T) {
 					resource.TestCheckResourceAttr("stackit_server_update_schedule.test_schedule", "name", serverUpdateScheduleResource["name"]),
 					resource.TestCheckResourceAttr("stackit_server_update_schedule.test_schedule", "rrule", serverUpdateScheduleResource["rrule"]),
 					resource.TestCheckResourceAttr("stackit_server_update_schedule.test_schedule", "enabled", strconv.FormatBool(true)),
-					resource.TestCheckResourceAttr("stackit_server_update_schedule.test_schedule", "region", *testRegion),
+					resource.TestCheckResourceAttr("stackit_server_update_schedule.test_schedule", "region", testutil.Region),
 				),
 			},
 			// data source
@@ -102,7 +101,7 @@ func TestAccServerUpdateScheduleResource(t *testing.T) {
 						server_id  = stackit_server_update_schedule.test_schedule.server_id
                         update_schedule_id = stackit_server_update_schedule.test_schedule.update_schedule_id
 					}`,
-					resourceConfig(validMaintenanceWindow, testRegion),
+					resourceConfig(validMaintenanceWindow, &testutil.Region),
 				),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					// Server update schedule data
diff --git a/stackit/internal/services/ske/ske_acc_test.go b/stackit/internal/services/ske/ske_acc_test.go
index 2ee93601..9b45e3e2 100644
--- a/stackit/internal/services/ske/ske_acc_test.go
+++ b/stackit/internal/services/ske/ske_acc_test.go
@@ -206,7 +206,6 @@ func getConfig(kubernetesVersion, nodePoolMachineOSVersion string, maintenanceEn
 }
 
 func TestAccSKE(t *testing.T) {
-	testRegion := utils.Ptr("eu01")
 	resource.Test(t, resource.TestCase{
 		ProtoV6ProviderFactories: testutil.TestAccProtoV6ProviderFactories,
 		CheckDestroy:             testAccCheckSKEDestroy,
@@ -215,7 +214,7 @@ func TestAccSKE(t *testing.T) {
 			// 1) Creation
 			{
 
-				Config: getConfig(clusterResource["kubernetes_version_min"], clusterResource["nodepool_os_version_min"], nil, testRegion),
+				Config: getConfig(clusterResource["kubernetes_version_min"], clusterResource["nodepool_os_version_min"], nil, &testutil.Region),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					// cluster data
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "name", clusterResource["name"]),
@@ -257,7 +256,7 @@ func TestAccSKE(t *testing.T) {
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "maintenance.enable_machine_image_version_updates", clusterResource["maintenance_enable_machine_image_version_updates"]),
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "maintenance.start", clusterResource["maintenance_start"]),
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "maintenance.end", clusterResource["maintenance_end"]),
-					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "region", *testRegion),
+					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "region", testutil.Region),
 
 					// Kubeconfig
 
@@ -285,7 +284,7 @@ func TestAccSKE(t *testing.T) {
 						}
 
 							`,
-					getConfig(clusterResource["kubernetes_version_min"], clusterResource["nodepool_os_version_min"], nil, testRegion),
+					getConfig(clusterResource["kubernetes_version_min"], clusterResource["nodepool_os_version_min"], nil, &testutil.Region),
 					clusterResource["project_id"],
 					clusterResource["name"],
 				),
@@ -294,7 +293,7 @@ func TestAccSKE(t *testing.T) {
 					// cluster data
 					resource.TestCheckResourceAttr("data.stackit_ske_cluster.cluster", "id", fmt.Sprintf("%s,%s,%s",
 						clusterResource["project_id"],
-						*testRegion,
+						testutil.Region,
 						clusterResource["name"],
 					)),
 					resource.TestCheckResourceAttr("data.stackit_ske_cluster.cluster", "project_id", clusterResource["project_id"]),
@@ -357,7 +356,7 @@ func TestAccSKE(t *testing.T) {
 			},
 			// 4) Update kubernetes version, OS version and maintenance end
 			{
-				Config: getConfig(clusterResource["kubernetes_version_min_new"], clusterResource["nodepool_os_version_min_new"], utils.Ptr(clusterResource["maintenance_end_new"]), testRegion),
+				Config: getConfig(clusterResource["kubernetes_version_min_new"], clusterResource["nodepool_os_version_min_new"], utils.Ptr(clusterResource["maintenance_end_new"]), &testutil.Region),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					// cluster data
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "project_id", clusterResource["project_id"]),
@@ -399,12 +398,12 @@ func TestAccSKE(t *testing.T) {
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "maintenance.enable_machine_image_version_updates", clusterResource["maintenance_enable_machine_image_version_updates"]),
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "maintenance.start", clusterResource["maintenance_start"]),
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "maintenance.end", clusterResource["maintenance_end_new"]),
-					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "region", *testRegion),
+					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "region", testutil.Region),
 				),
 			},
 			// 5) Downgrade kubernetes and nodepool machine OS version
 			{
-				Config: getConfig(clusterResource["kubernetes_version_min"], clusterResource["nodepool_os_version_min"], utils.Ptr(clusterResource["maintenance_end_new"]), testRegion),
+				Config: getConfig(clusterResource["kubernetes_version_min"], clusterResource["nodepool_os_version_min"], utils.Ptr(clusterResource["maintenance_end_new"]), &testutil.Region),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					// cluster data
 					resource.TestCheckResourceAttr("stackit_ske_cluster.cluster", "project_id", clusterResource["project_id"]),
@@ -443,7 +442,7 @@ func testAccCheckSKEDestroy(s *terraform.State) error {
 			continue
 		}
 		// cluster terraform ID: = "[project_id],[region],[cluster_name]"
-		clusterName := strings.Split(rs.Primary.ID, core.Separator)[1]
+		clusterName := strings.Split(rs.Primary.ID, core.Separator)[2]
 		clustersToDestroy = append(clustersToDestroy, clusterName)
 	}
 
diff --git a/stackit/internal/services/sqlserverflex/sqlserverflex_acc_test.go b/stackit/internal/services/sqlserverflex/sqlserverflex_acc_test.go
index cf2aeb37..52fba423 100644
--- a/stackit/internal/services/sqlserverflex/sqlserverflex_acc_test.go
+++ b/stackit/internal/services/sqlserverflex/sqlserverflex_acc_test.go
@@ -97,14 +97,13 @@ func configResources(backupSchedule string, region *string) string {
 }
 
 func TestAccSQLServerFlexResource(t *testing.T) {
-	testRegion := utils.Ptr("eu01")
 	resource.Test(t, resource.TestCase{
 		ProtoV6ProviderFactories: testutil.TestAccProtoV6ProviderFactories,
 		CheckDestroy:             testAccChecksqlserverflexDestroy,
 		Steps: []resource.TestStep{
 			// Creation
 			{
-				Config: configResources(instanceResource["backup_schedule"], testRegion),
+				Config: configResources(instanceResource["backup_schedule"], &testutil.Region),
 				Check: resource.ComposeAggregateTestCheckFunc(
 					// Instance
 					resource.TestCheckResourceAttr("stackit_sqlserverflex_instance.instance", "project_id", instanceResource["project_id"]),
@@ -122,7 +121,7 @@ func TestAccSQLServerFlexResource(t *testing.T) {
 					resource.TestCheckResourceAttr("stackit_sqlserverflex_instance.instance", "version", instanceResource["version"]),
 					resource.TestCheckResourceAttr("stackit_sqlserverflex_instance.instance", "options.retention_days", instanceResource["options_retention_days"]),
 					resource.TestCheckResourceAttr("stackit_sqlserverflex_instance.instance", "backup_schedule", instanceResource["backup_schedule"]),
-					resource.TestCheckResourceAttr("stackit_sqlserverflex_instance.instance", "region", *testRegion),
+					resource.TestCheckResourceAttr("stackit_sqlserverflex_instance.instance", "region", testutil.Region),
 					// User
 					resource.TestCheckResourceAttrPair(
 						"stackit_sqlserverflex_user.user", "project_id",
@@ -323,7 +322,7 @@ func testAccChecksqlserverflexDestroy(s *terraform.State) error {
 			continue
 		}
 		// instance terraform ID: = "[project_id],[region],[instance_id]"
-		instanceId := strings.Split(rs.Primary.ID, core.Separator)[1]
+		instanceId := strings.Split(rs.Primary.ID, core.Separator)[2]
 		instancesToDestroy = append(instancesToDestroy, instanceId)
 	}