diff --git a/internal/services/conditionalaccess/conditional_access_policy_resource.go b/internal/services/conditionalaccess/conditional_access_policy_resource.go
index 2d8b29f36..16dd71f81 100644
--- a/internal/services/conditionalaccess/conditional_access_policy_resource.go
+++ b/internal/services/conditionalaccess/conditional_access_policy_resource.go
@@ -77,7 +77,7 @@ func conditionalAccessPolicyResource() *pluginsdk.Resource {
 									"included_applications": {
 										Type:         pluginsdk.TypeList,
 										Optional:     true,
-										ExactlyOneOf: []string{"conditions.0.applications.0.included_applications", "conditions.0.applications.0.included_user_actions"},
+										ExactlyOneOf: []string{"conditions.0.applications.0.included_applications", "conditions.0.applications.0.included_user_actions", "conditions.0.applications.0.filter"},
 										Elem: &pluginsdk.Schema{
 											Type:             pluginsdk.TypeString,
 											ValidateDiagFunc: validation.ValidateDiag(validation.StringIsNotEmpty),
@@ -96,7 +96,7 @@ func conditionalAccessPolicyResource() *pluginsdk.Resource {
 									"included_user_actions": {
 										Type:         pluginsdk.TypeList,
 										Optional:     true,
-										ExactlyOneOf: []string{"conditions.0.applications.0.included_applications", "conditions.0.applications.0.included_user_actions"},
+										ExactlyOneOf: []string{"conditions.0.applications.0.included_applications", "conditions.0.applications.0.included_user_actions", "conditions.0.applications.0.filter"},
 										Elem: &pluginsdk.Schema{
 											Type:             pluginsdk.TypeString,
 											ValidateDiagFunc: validation.ValidateDiag(validation.StringIsNotEmpty),
@@ -104,9 +104,10 @@ func conditionalAccessPolicyResource() *pluginsdk.Resource {
 									},
 
 									"filter": {
-										Type:     pluginsdk.TypeList,
-										Optional: true,
-										MaxItems: 1,
+										Type:         pluginsdk.TypeList,
+										Optional:     true,
+										ExactlyOneOf: []string{"conditions.0.applications.0.included_applications", "conditions.0.applications.0.included_user_actions", "conditions.0.applications.0.filter"},
+										MaxItems:     1,
 										Elem: &pluginsdk.Resource{
 											Schema: map[string]*pluginsdk.Schema{
 												"mode": {