diff --git a/env0/resource_configuration_variable.go b/env0/resource_configuration_variable.go
index 7f6843ae..a6197eb7 100644
--- a/env0/resource_configuration_variable.go
+++ b/env0/resource_configuration_variable.go
@@ -143,50 +143,26 @@ func whichScope(d *schema.ResourceData) (client.Scope, string) {
 }
 
 func resourceConfigurationVariableCreate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
-	apiClient := meta.(client.ApiClientInterface)
 	scope, scopeId := whichScope(d)
-	name := d.Get("name").(string)
-	description := d.Get("description").(string)
-	value := d.Get("value").(string)
-	isSensitive := d.Get("is_sensitive").(bool)
-	typeAsString := d.Get("type").(string)
-	format := client.Format(d.Get("format").(string))
-	isReadOnly := d.Get("is_read_only").(bool)
-	isRequired := d.Get("is_required").(bool)
-	regex := d.Get("regex").(string)
+	params := client.ConfigurationVariableCreateParams{Scope: scope, ScopeId: scopeId}
+	if err := readResourceData(&params, d); err != nil {
+		return diag.Errorf("schema resource data deserialization failed: %v", err)
+	}
 
-	if err := validateNilValue(isReadOnly, isRequired, value); err != nil {
+	if err := validateNilValue(params.IsReadOnly, params.IsRequired, params.Value); err != nil {
 		return diag.Errorf(err.Error())
 	}
 
-	var type_ client.ConfigurationVariableType
-	switch typeAsString {
-	case "environment":
-		type_ = client.ConfigurationVariableTypeEnvironment
-	case "terraform":
-		type_ = client.ConfigurationVariableTypeTerraform
-	default:
-		return diag.Errorf("'type' can only receive either 'environment' or 'terraform': %s", typeAsString)
-	}
-	actualEnumValues, getEnumErr := getEnum(d, value)
+	actualEnumValues, getEnumErr := getEnum(d, params.Value)
 	if getEnumErr != nil {
 		return getEnumErr
 	}
 
-	configurationVariable, err := apiClient.ConfigurationVariableCreate(client.ConfigurationVariableCreateParams{
-		Name:        name,
-		Value:       value,
-		IsSensitive: isSensitive,
-		Scope:       scope,
-		ScopeId:     scopeId,
-		Type:        type_,
-		EnumValues:  actualEnumValues,
-		Description: description,
-		Format:      format,
-		IsReadOnly:  isReadOnly,
-		IsRequired:  isRequired,
-		Regex:       regex,
-	})
+	params.EnumValues = actualEnumValues
+
+	apiClient := meta.(client.ApiClientInterface)
+
+	configurationVariable, err := apiClient.ConfigurationVariableCreate(params)
 	if err != nil {
 		return diag.Errorf("could not create configurationVariable: %v", err)
 	}
diff --git a/env0/resource_configuration_variable_test.go b/env0/resource_configuration_variable_test.go
index 8b4d2b12..61d6f359 100644
--- a/env0/resource_configuration_variable_test.go
+++ b/env0/resource_configuration_variable_test.go
@@ -408,7 +408,7 @@ resource "%s" "test" {
 						"value": configVar.Value,
 						"type":  6,
 					}),
-					ExpectError: regexp.MustCompile(`(Error: 'type' can only receive either 'environment' or 'terraform')`),
+					ExpectError: regexp.MustCompile("unknown configuration variable type 6"),
 				},
 			},
 		}
@@ -581,9 +581,9 @@ resource "%s" "test" {
 						"name":        newConfigVar.Name,
 						"description": newConfigVar.Description,
 						"value":       newConfigVar.Value,
-						"type":        newConfigVar.Type,
+						"type":        "boooo",
 					}),
-					ExpectError: regexp.MustCompile(`'type' can only receive either 'environment' or 'terraform'`),
+					ExpectError: regexp.MustCompile("unknown configuration variable type boooo"),
 				},
 			},
 		}
diff --git a/env0/utils.go b/env0/utils.go
index 24979556..2cc0cf51 100644
--- a/env0/utils.go
+++ b/env0/utils.go
@@ -71,7 +71,20 @@ func readResourceData(i interface{}, d *schema.ResourceData) error {
 			continue
 		}
 
-		if customField, ok := field.Interface().(CustomResourceDataField); ok {
+		// custom field is a pointer.
+		if _, ok := field.Interface().(CustomResourceDataField); ok {
+			if field.IsNil() {
+				// Init the field a valid value (instead of nil).
+				field.Set(reflect.New(field.Type().Elem()))
+			}
+			if err := field.Interface().(CustomResourceDataField).ReadResourceData(fieldNameSC, d); err != nil {
+				return err
+			}
+			continue
+		}
+
+		// custom field is a value, check the pointer.
+		if customField, ok := field.Addr().Interface().(CustomResourceDataField); ok {
 			if err := customField.ReadResourceData(fieldNameSC, d); err != nil {
 				return err
 			}
diff --git a/env0/utils_test.go b/env0/utils_test.go
index b57be636..6d1a149b 100644
--- a/env0/utils_test.go
+++ b/env0/utils_test.go
@@ -199,6 +199,53 @@ func TestWriteCustomResourceData(t *testing.T) {
 	assert.Equal(t, configurationVariable.Regex, d.Get("regex"))
 }
 
+func TestReadByValueCustomResourceData(t *testing.T) {
+	d := schema.TestResourceDataRaw(t, dataConfigurationVariable().Schema, map[string]interface{}{
+		"type":        "terraform",
+		"name":        "name",
+		"description": "description",
+	})
+
+	params := client.ConfigurationVariableCreateParams{}
+
+	assert.Nil(t, readResourceData(&params, d))
+
+	assert.Equal(t, params.Name, "name")
+	assert.Equal(t, int(params.Type), 1)
+	assert.Equal(t, params.Description, "description")
+}
+
+func TestReadByPointerCustomResourceData(t *testing.T) {
+	d := schema.TestResourceDataRaw(t, dataConfigurationVariable().Schema, map[string]interface{}{
+		"type":        "terraform",
+		"name":        "name",
+		"description": "description",
+	})
+
+	params := client.ConfigurationVariable{}
+
+	assert.Nil(t, readResourceData(&params, d))
+
+	assert.Equal(t, params.Name, "name")
+	assert.Equal(t, int(*params.Type), 1)
+	assert.Equal(t, params.Description, "description")
+}
+
+func TestReadByPointerNilCustomResourceData(t *testing.T) {
+	d := schema.TestResourceDataRaw(t, dataConfigurationVariable().Schema, map[string]interface{}{
+		"name":        "name",
+		"description": "description",
+	})
+
+	params := client.ConfigurationVariable{}
+
+	assert.Nil(t, readResourceData(&params, d))
+
+	assert.Equal(t, params.Name, "name")
+	assert.Nil(t, params.Type)
+	assert.Equal(t, params.Description, "description")
+}
+
 func TestWriteResourceDataSliceVariablesAgents(t *testing.T) {
 	d := schema.TestResourceDataRaw(t, dataAgents().Schema, map[string]interface{}{})