update code

internal/services/cosmos/cosmosdb_account_resource.go

@@ -482,7 +482,6 @@ func resourceCosmosDbAccount() *pluginsdk.Resource {
 			"minimal_tls_version": {
 				Type:         pluginsdk.TypeString,
 				Optional:     true,
-				Default:      string(cosmosdb.MinimalTlsVersionTlsOneTwo),
 				ValidateFunc: validation.StringInSlice(cosmosdb.PossibleValuesForMinimalTlsVersion(), false),
 			},
 
@@ -766,7 +765,6 @@ func resourceCosmosDbAccountCreate(d *pluginsdk.ResourceData, meta interface{})
 	partitionMergeEnabled := d.Get("partition_merge_enabled").(bool)
 	enableAnalyticalStorage := d.Get("analytical_storage_enabled").(bool)
 	disableLocalAuthentication := d.Get("local_authentication_disabled").(bool)
-	minimalTlsVersion := d.Get("minimal_tls_version").(string)
 
 	r, err := databaseClient.CheckNameExists(ctx, id.DatabaseAccountName)
 	if err != nil {
@@ -824,11 +822,14 @@ func resourceCosmosDbAccountCreate(d *pluginsdk.ResourceData, meta interface{})
 			NetworkAclBypass:                   pointer.To(networkByPass),
 			NetworkAclBypassResourceIds:        utils.ExpandStringSlice(d.Get("network_acl_bypass_ids").([]interface{})),
 			DisableLocalAuth:                   utils.Bool(disableLocalAuthentication),
-			MinimalTlsVersion:                  pointer.To(cosmosdb.MinimalTlsVersion(minimalTlsVersion)),
 		},
 		Tags: tags.Expand(t),
 	}
 
+	if v, ok := d.GetOk("minimal_tls_version"); ok {
+		account.Properties.MinimalTlsVersion = pointer.To(cosmosdb.MinimalTlsVersion(v.(string)))
+	}
+
 	// These values may not have changed but they need to be in the update params...
 	if v, ok := d.GetOk("default_identity_type"); ok {
 		account.Properties.DefaultIdentity = pointer.To(v.(string))
@@ -1062,11 +1063,14 @@ func resourceCosmosDbAccountUpdate(d *pluginsdk.ResourceData, meta interface{})
 				DisableLocalAuth:                   disableLocalAuthentication,
 				BackupPolicy:                       backup,
 				EnablePartitionMerge:               pointer.To(d.Get("partition_merge_enabled").(bool)),
-				MinimalTlsVersion:                  pointer.To(cosmosdb.MinimalTlsVersion(d.Get("minimal_tls_version").(string))),
 			},
 			Tags: t,
 		}
 
+		if v, ok := d.GetOk("minimal_tls_version"); ok {
+			account.Properties.MinimalTlsVersion = pointer.To(cosmosdb.MinimalTlsVersion(v.(string)))
+		}
+
 		if keyVaultKeyIDRaw, ok := d.GetOk("key_vault_key_id"); ok {
 			keyVaultKey, err := keyVaultParse.ParseOptionallyVersionedNestedItemID(keyVaultKeyIDRaw.(string))
 			if err != nil {