diff --git a/internal/services/loganalytics/log_analytics_datasource_windows_event_resource.go b/internal/services/loganalytics/log_analytics_datasource_windows_event_resource.go
index 611591e7dc42..b7f0cdc00795 100644
--- a/internal/services/loganalytics/log_analytics_datasource_windows_event_resource.go
+++ b/internal/services/loganalytics/log_analytics_datasource_windows_event_resource.go
@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"log"
-	"strings"
 	"time"
 
 	"github.com/hashicorp/go-azure-helpers/lang/response"
@@ -199,7 +198,7 @@ func flattenLogAnalyticsDataSourceWindowsEventEventType(eventTypes []dataSourceW
 	for _, e := range eventTypes {
 		// The casing isn't preserved by the API for event types, so we need to normalise it here until
 		// https://github.com/Azure/azure-rest-api-specs/issues/18163 is fixed
-		output = append(output, strings.ToLower(e.EventType))
+		output = append(output, e.EventType)
 	}
 	return output
 }
diff --git a/internal/services/loganalytics/log_analytics_linked_storage_account_resource.go b/internal/services/loganalytics/log_analytics_linked_storage_account_resource.go
index d3e2ba109ebd..a15045574197 100644
--- a/internal/services/loganalytics/log_analytics_linked_storage_account_resource.go
+++ b/internal/services/loganalytics/log_analytics_linked_storage_account_resource.go
@@ -3,7 +3,6 @@ package loganalytics
 import (
 	"fmt"
 	"log"
-	"strings"
 	"time"
 
 	"github.com/hashicorp/go-azure-helpers/lang/response"
@@ -11,14 +10,16 @@ import (
 	"github.com/hashicorp/terraform-provider-azurerm/helpers/azure"
 	"github.com/hashicorp/terraform-provider-azurerm/helpers/tf"
 	"github.com/hashicorp/terraform-provider-azurerm/internal/clients"
+	"github.com/hashicorp/terraform-provider-azurerm/internal/features"
 	"github.com/hashicorp/terraform-provider-azurerm/internal/tf/pluginsdk"
+	"github.com/hashicorp/terraform-provider-azurerm/internal/tf/suppress"
 	"github.com/hashicorp/terraform-provider-azurerm/internal/tf/validation"
 	"github.com/hashicorp/terraform-provider-azurerm/internal/timeouts"
 	"github.com/hashicorp/terraform-provider-azurerm/utils"
 )
 
 func resourceLogAnalyticsLinkedStorageAccount() *pluginsdk.Resource {
-	return &pluginsdk.Resource{
+	resource := &pluginsdk.Resource{
 		Create: resourceLogAnalyticsLinkedStorageAccountCreateUpdate,
 		Read:   resourceLogAnalyticsLinkedStorageAccountRead,
 		Update: resourceLogAnalyticsLinkedStorageAccountCreateUpdate,
@@ -42,12 +43,11 @@ func resourceLogAnalyticsLinkedStorageAccount() *pluginsdk.Resource {
 				Required: true,
 				ForceNew: true,
 				ValidateFunc: validation.StringInSlice([]string{
-					strings.ToLower(string(linkedstorageaccounts.DataSourceTypeCustomLogs)),
-					strings.ToLower(string(linkedstorageaccounts.DataSourceTypeAzureWatson)),
-					strings.ToLower(string(linkedstorageaccounts.DataSourceTypeQuery)),
-					strings.ToLower(string(linkedstorageaccounts.DataSourceTypeAlerts)),
-					// Value removed from enum in 2020-08-01, but effectively still works
-					"ingestion",
+					string(linkedstorageaccounts.DataSourceTypeAlerts),
+					string(linkedstorageaccounts.DataSourceTypeAzureWatson),
+					string(linkedstorageaccounts.DataSourceTypeCustomLogs),
+					string(linkedstorageaccounts.DataSourceTypeIngestion),
+					string(linkedstorageaccounts.DataSourceTypeQuery),
 				}, false),
 			},
 
@@ -71,6 +71,25 @@ func resourceLogAnalyticsLinkedStorageAccount() *pluginsdk.Resource {
 			},
 		},
 	}
+
+	// TODO 4.0: remove this block to respect correct casing
+	if !features.FourPointOhBeta() {
+		resource.Schema["data_source_type"] = &pluginsdk.Schema{
+			Type:     pluginsdk.TypeString,
+			Required: true,
+			ForceNew: true,
+			ValidateFunc: validation.StringInSlice([]string{
+				string(linkedstorageaccounts.DataSourceTypeAlerts),
+				string(linkedstorageaccounts.DataSourceTypeAzureWatson),
+				string(linkedstorageaccounts.DataSourceTypeCustomLogs),
+				string(linkedstorageaccounts.DataSourceTypeIngestion),
+				string(linkedstorageaccounts.DataSourceTypeQuery),
+			}, true),
+			DiffSuppressFunc: suppress.CaseDifference,
+		}
+	}
+
+	return resource
 }
 
 func resourceLogAnalyticsLinkedStorageAccountCreateUpdate(d *pluginsdk.ResourceData, meta interface{}) error {